lemma1 : {c10 :ℕ} → Axiom (stmt1Cond {c10}) (λ env → record { varn = varn env ; vari = 0 }) (stmt2Cond {c\
10})
lemma1 {c10} env = impl⇒ ( λ cond → let open ≡-Reasoning  in
begin
(Equal (varn env) c10 ) ∧ true
≡⟨ ∧true ⟩
Equal (varn env) c10
≡⟨ cond ⟩
true
∎ )