Mercurial > hg > Members > atton > delta_monad
annotate agda/delta.agda @ 69:295e8ed39c0c
Change headDelta definition. return non-delta value
author | Yasutaka Higa <e115763@ie.u-ryukyu.ac.jp> |
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date | Thu, 27 Nov 2014 19:12:44 +0900 |
parents | f9c9207c40b7 |
children | 18a20a14c4b2 |
rev | line source |
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Define Similar in Agda
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1 open import list |
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6e6d646d7722
Split basic functions to file
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2 open import basic |
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e0ba1bf564dd
Apply level to some functions
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3 |
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Apply level to some functions
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4 open import Level |
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Define Monad-law 1-4
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5 open import Relation.Binary.PropositionalEquality |
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6 open ≡-Reasoning |
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7 |
43
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Rename to Delta from Similar
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8 module delta where |
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9 |
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Trying redefine delta for infinite changes
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10 |
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11 data Delta {l : Level} (A : Set l) : (Set (suc l)) where |
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12 mono : A -> Delta A |
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13 delta : A -> Delta A -> Delta A |
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14 |
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15 deltaAppend : {l : Level} {A : Set l} -> Delta A -> Delta A -> Delta A |
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16 deltaAppend (mono x) d = delta x d |
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17 deltaAppend (delta x d) ds = delta x (deltaAppend d ds) |
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18 |
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19 headDelta : {l : Level} {A : Set l} -> Delta A -> Delta A |
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20 headDelta (mono x) = mono x |
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21 headDelta (delta x _) = mono x |
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22 |
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23 tailDelta : {l : Level} {A : Set l} -> Delta A -> Delta A |
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24 tailDelta (mono x) = mono x |
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25 tailDelta (delta _ d) = d |
26
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26 |
38
6ce83b2c9e59
Proof Functor-laws
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27 |
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Proof Functor-laws
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28 -- Functor |
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29 fmap : {l ll : Level} {A : Set l} {B : Set ll} -> (A -> B) -> (Delta A) -> (Delta B) |
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30 fmap f (mono x) = mono (f x) |
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31 fmap f (delta x d) = delta (f x) (fmap f d) |
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32 |
26
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33 |
38
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Proof Functor-laws
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34 |
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Add Haskell style Monad-laws and Proof Monad-laws-h-1
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35 -- Monad (Category) |
43
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36 eta : {l : Level} {A : Set l} -> A -> Delta A |
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37 eta x = mono x |
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38 |
59
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Define bind and mu for Infinite Delta
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39 bind : {l ll : Level} {A : Set l} {B : Set ll} -> (Delta A) -> (A -> Delta B) -> Delta B |
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40 bind (mono x) f = f x |
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41 bind (delta x d) f = deltaAppend (headDelta (f x)) (bind d (tailDelta ∙ f)) |
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42 |
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43 mu : {l : Level} {A : Set l} -> Delta (Delta A) -> Delta A |
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44 mu d = bind d id |
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45 |
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Define bind and mu for Infinite Delta
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46 |
43
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47 returnS : {l : Level} {A : Set l} -> A -> Delta A |
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48 returnS x = mono x |
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49 |
43
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50 returnSS : {l : Level} {A : Set l} -> A -> A -> Delta A |
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51 returnSS x y = deltaAppend (returnS x) (returnS y) |
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52 |
33 | 53 |
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54 -- Monad (Haskell) |
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55 return : {l : Level} {A : Set l} -> A -> Delta A |
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56 return = eta |
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57 |
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Proof monad-law-h-2, trying monad-law-h-3
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58 _>>=_ : {l ll : Level} {A : Set l} {B : Set ll} -> |
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59 (x : Delta A) -> (f : A -> (Delta B)) -> (Delta B) |
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60 (mono x) >>= f = f x |
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61 (delta x d) >>= f = deltaAppend (headDelta (f x)) (d >>= (tailDelta ∙ f)) |
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62 |
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63 |
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Proof Functor-laws
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64 |
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Proof Functor-laws
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65 -- proofs |
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66 |
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67 -- sub proofs |
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68 |
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69 head-delta-natural-transformation : {l ll : Level} {A : Set l} {B : Set ll} -> |
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70 (f : A -> B) (d : Delta A) -> (headDelta (fmap f d)) ≡ fmap f (headDelta d) |
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71 head-delta-natural-transformation f (mono x) = refl |
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72 head-delta-natural-transformation f (delta x d) = refl |
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73 |
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74 tail-delta-natural-transfomation : {l ll : Level} {A : Set l} {B : Set ll} -> |
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75 (f : A -> B) (d : Delta A) -> (tailDelta (fmap f d)) ≡ fmap f (tailDelta d) |
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76 tail-delta-natural-transfomation f (mono x) = refl |
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77 tail-delta-natural-transfomation f (delta x d) = refl |
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78 |
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79 delta-append-natural-transfomation : {l ll : Level} {A : Set l} {B : Set ll} -> |
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80 (f : A -> B) (d : Delta A) (dd : Delta A) -> |
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81 deltaAppend (fmap f d) (fmap f dd) ≡ fmap f (deltaAppend d dd) |
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82 delta-append-natural-transfomation f (mono x) dd = refl |
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83 delta-append-natural-transfomation f (delta x d) dd = begin |
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84 deltaAppend (fmap f (delta x d)) (fmap f dd) |
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85 ≡⟨ refl ⟩ |
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86 deltaAppend (delta (f x) (fmap f d)) (fmap f dd) |
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87 ≡⟨ refl ⟩ |
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88 delta (f x) (deltaAppend (fmap f d) (fmap f dd)) |
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89 ≡⟨ cong (\d -> delta (f x) d) (delta-append-natural-transfomation f d dd) ⟩ |
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90 delta (f x) (fmap f (deltaAppend d dd)) |
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91 ≡⟨ refl ⟩ |
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92 fmap f (deltaAppend (delta x d) dd) |
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93 ∎ |
38
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Proof Functor-laws
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94 -- Functor-laws |
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95 |
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Proof Functor-laws
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96 -- Functor-law-1 : T(id) = id' |
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97 functor-law-1 : {l : Level} {A : Set l} -> (d : Delta A) -> (fmap id) d ≡ id d |
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98 functor-law-1 (mono x) = refl |
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99 functor-law-1 (delta x d) = cong (delta x) (functor-law-1 d) |
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100 |
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Proof Functor-laws
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changeset
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101 -- Functor-law-2 : T(f . g) = T(f) . T(g) |
6ce83b2c9e59
Proof Functor-laws
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36
diff
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102 functor-law-2 : {l ll lll : Level} {A : Set l} {B : Set ll} {C : Set lll} -> |
55
9c8c09334e32
Redefine Delta for infinite changes in Agda
Yasutaka Higa <e115763@ie.u-ryukyu.ac.jp>
parents:
54
diff
changeset
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103 (f : B -> C) -> (g : A -> B) -> (d : Delta A) -> |
9c8c09334e32
Redefine Delta for infinite changes in Agda
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54
diff
changeset
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104 (fmap (f ∙ g)) d ≡ ((fmap f) ∙ (fmap g)) d |
57
dfcd72dc697e
ReDefine Delta used non-empty-list for infinite changes
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parents:
56
diff
changeset
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105 functor-law-2 f g (mono x) = refl |
dfcd72dc697e
ReDefine Delta used non-empty-list for infinite changes
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parents:
56
diff
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106 functor-law-2 f g (delta x d) = cong (delta (f (g x))) (functor-law-2 f g d) |
38
6ce83b2c9e59
Proof Functor-laws
Yasutaka Higa <e115763@ie.u-ryukyu.ac.jp>
parents:
36
diff
changeset
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107 |
69
295e8ed39c0c
Change headDelta definition. return non-delta value
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parents:
68
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changeset
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108 {- |
39 | 109 -- Monad-laws (Category) |
63
474ed34e4f02
proving monad-law-1 ...
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parents:
62
diff
changeset
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110 |
39 | 111 -- monad-law-1 : join . fmap join = join . join |
59
46b15f368905
Define bind and mu for Infinite Delta
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parents:
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changeset
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112 monad-law-1 : {l : Level} {A : Set l} -> (d : Delta (Delta (Delta A))) -> ((mu ∙ (fmap mu)) d) ≡ ((mu ∙ mu) d) |
69
295e8ed39c0c
Change headDelta definition. return non-delta value
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parents:
68
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113 monad-law-1 d = ? |
63
474ed34e4f02
proving monad-law-1 ...
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62
diff
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114 |
474ed34e4f02
proving monad-law-1 ...
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115 |
39 | 116 -- monad-law-2-2 : join . return = id |
43
90b171e3a73e
Rename to Delta from Similar
Yasutaka Higa <e115763@ie.u-ryukyu.ac.jp>
parents:
42
diff
changeset
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117 monad-law-2-2 : {l : Level} {A : Set l } -> (s : Delta A) -> (mu ∙ eta) s ≡ id s |
35
c5cdbedc68ad
Proof Monad-law-2-2
Yasutaka Higa <e115763@ie.u-ryukyu.ac.jp>
parents:
34
diff
changeset
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118 monad-law-2-2 (similar lx x ly y) = refl |
c5cdbedc68ad
Proof Monad-law-2-2
Yasutaka Higa <e115763@ie.u-ryukyu.ac.jp>
parents:
34
diff
changeset
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119 |
39 | 120 -- monad-law-3 : return . f = fmap f . return |
40
a7cd7740f33e
Add Haskell style Monad-laws and Proof Monad-laws-h-1
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parents:
39
diff
changeset
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121 monad-law-3 : {l : Level} {A B : Set l} (f : A -> B) (x : A) -> (eta ∙ f) x ≡ (fmap f ∙ eta) x |
36 | 122 monad-law-3 f x = refl |
27
742e62fc63e4
Define Monad-law 1-4
Yasutaka Higa <e115763@ie.u-ryukyu.ac.jp>
parents:
26
diff
changeset
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123 |
39 | 124 -- monad-law-4 : join . fmap (fmap f) = fmap f . join |
43
90b171e3a73e
Rename to Delta from Similar
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parents:
42
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changeset
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125 monad-law-4 : {l ll : Level} {A : Set l} {B : Set ll} (f : A -> B) (s : Delta (Delta A)) -> |
36 | 126 (mu ∙ fmap (fmap f)) s ≡ (fmap f ∙ mu) s |
40
a7cd7740f33e
Add Haskell style Monad-laws and Proof Monad-laws-h-1
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parents:
39
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changeset
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127 monad-law-4 f (similar lx (similar llx x _ _) ly (similar _ _ lly y)) = refl |
69
295e8ed39c0c
Change headDelta definition. return non-delta value
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128 -} |
40
a7cd7740f33e
Add Haskell style Monad-laws and Proof Monad-laws-h-1
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parents:
39
diff
changeset
|
129 |
a7cd7740f33e
Add Haskell style Monad-laws and Proof Monad-laws-h-1
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parents:
39
diff
changeset
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130 -- Monad-laws (Haskell) |
a7cd7740f33e
Add Haskell style Monad-laws and Proof Monad-laws-h-1
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parents:
39
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changeset
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131 -- monad-law-h-1 : return a >>= k = k a |
a7cd7740f33e
Add Haskell style Monad-laws and Proof Monad-laws-h-1
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parents:
39
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changeset
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132 monad-law-h-1 : {l ll : Level} {A : Set l} {B : Set ll} -> |
43
90b171e3a73e
Rename to Delta from Similar
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42
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133 (a : A) -> (k : A -> (Delta B)) -> |
40
a7cd7740f33e
Add Haskell style Monad-laws and Proof Monad-laws-h-1
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parents:
39
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changeset
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134 (return a >>= k) ≡ (k a) |
59
46b15f368905
Define bind and mu for Infinite Delta
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parents:
57
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changeset
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135 monad-law-h-1 a k = refl |
46b15f368905
Define bind and mu for Infinite Delta
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parents:
57
diff
changeset
|
136 |
46b15f368905
Define bind and mu for Infinite Delta
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parents:
57
diff
changeset
|
137 |
40
a7cd7740f33e
Add Haskell style Monad-laws and Proof Monad-laws-h-1
Yasutaka Higa <e115763@ie.u-ryukyu.ac.jp>
parents:
39
diff
changeset
|
138 |
a7cd7740f33e
Add Haskell style Monad-laws and Proof Monad-laws-h-1
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parents:
39
diff
changeset
|
139 -- monad-law-h-2 : m >>= return = m |
43
90b171e3a73e
Rename to Delta from Similar
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parents:
42
diff
changeset
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140 monad-law-h-2 : {l : Level}{A : Set l} -> (m : Delta A) -> (m >>= return) ≡ m |
59
46b15f368905
Define bind and mu for Infinite Delta
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parents:
57
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141 monad-law-h-2 (mono x) = refl |
46b15f368905
Define bind and mu for Infinite Delta
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parents:
57
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changeset
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142 monad-law-h-2 (delta x d) = cong (delta x) (monad-law-h-2 d) |
46b15f368905
Define bind and mu for Infinite Delta
Yasutaka Higa <e115763@ie.u-ryukyu.ac.jp>
parents:
57
diff
changeset
|
143 |
46b15f368905
Define bind and mu for Infinite Delta
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parents:
57
diff
changeset
|
144 |
41
23474bf242c6
Proof monad-law-h-2, trying monad-law-h-3
Yasutaka Higa <e115763@ie.u-ryukyu.ac.jp>
parents:
40
diff
changeset
|
145 -- monad-law-h-3 : m >>= (\x -> k x >>= h) = (m >>= k) >>= h |
23474bf242c6
Proof monad-law-h-2, trying monad-law-h-3
Yasutaka Higa <e115763@ie.u-ryukyu.ac.jp>
parents:
40
diff
changeset
|
146 monad-law-h-3 : {l ll lll : Level} {A : Set l} {B : Set ll} {C : Set lll} -> |
43
90b171e3a73e
Rename to Delta from Similar
Yasutaka Higa <e115763@ie.u-ryukyu.ac.jp>
parents:
42
diff
changeset
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147 (m : Delta A) -> (k : A -> (Delta B)) -> (h : B -> (Delta C)) -> |
41
23474bf242c6
Proof monad-law-h-2, trying monad-law-h-3
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parents:
40
diff
changeset
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148 (m >>= (\x -> k x >>= h)) ≡ ((m >>= k) >>= h) |
59
46b15f368905
Define bind and mu for Infinite Delta
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parents:
57
diff
changeset
|
149 monad-law-h-3 (mono x) k h = refl |
69
295e8ed39c0c
Change headDelta definition. return non-delta value
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parents:
68
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150 monad-law-h-3 (delta x (mono xx)) k h = begin |
295e8ed39c0c
Change headDelta definition. return non-delta value
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parents:
68
diff
changeset
|
151 delta x (mono xx) >>= (\x → k x >>= h) |
42
1df4f9d88025
Proof Monad-law-3 (haskell)
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parents:
41
diff
changeset
|
152 ≡⟨ refl ⟩ |
69
295e8ed39c0c
Change headDelta definition. return non-delta value
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parents:
68
diff
changeset
|
153 deltaAppend (headDelta ((\x -> k x >>= h) x)) ((mono xx) >>= (tailDelta ∙ ((\x → k x >>= h)))) |
295e8ed39c0c
Change headDelta definition. return non-delta value
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parents:
68
diff
changeset
|
154 ≡⟨ refl ⟩ |
295e8ed39c0c
Change headDelta definition. return non-delta value
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parents:
68
diff
changeset
|
155 deltaAppend (headDelta ((\x -> k x >>= h) x)) ((tailDelta ∙ (\x → k x >>= h)) xx) |
42
1df4f9d88025
Proof Monad-law-3 (haskell)
Yasutaka Higa <e115763@ie.u-ryukyu.ac.jp>
parents:
41
diff
changeset
|
156 ≡⟨ refl ⟩ |
69
295e8ed39c0c
Change headDelta definition. return non-delta value
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parents:
68
diff
changeset
|
157 deltaAppend (headDelta (k x >>= h)) (tailDelta (k xx >>= h)) |
295e8ed39c0c
Change headDelta definition. return non-delta value
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parents:
68
diff
changeset
|
158 ≡⟨ {!!} ⟩ -- ? |
295e8ed39c0c
Change headDelta definition. return non-delta value
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parents:
68
diff
changeset
|
159 deltaAppend (headDelta (k x)) (tailDelta (k xx)) >>= h |
295e8ed39c0c
Change headDelta definition. return non-delta value
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parents:
68
diff
changeset
|
160 ≡⟨ refl ⟩ |
295e8ed39c0c
Change headDelta definition. return non-delta value
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parents:
68
diff
changeset
|
161 (delta x (mono xx) >>= k) >>= h |
41
23474bf242c6
Proof monad-law-h-2, trying monad-law-h-3
Yasutaka Higa <e115763@ie.u-ryukyu.ac.jp>
parents:
40
diff
changeset
|
162 ∎ |
69
295e8ed39c0c
Change headDelta definition. return non-delta value
Yasutaka Higa <e115763@ie.u-ryukyu.ac.jp>
parents:
68
diff
changeset
|
163 monad-law-h-3 (delta x (delta xx d)) k h = {!!} |
295e8ed39c0c
Change headDelta definition. return non-delta value
Yasutaka Higa <e115763@ie.u-ryukyu.ac.jp>
parents:
68
diff
changeset
|
164 |