!$\wedge$!true : { x : Bool } !$\rightarrow$! x !$\wedge$! true !$\equiv$! x !$\wedge$!true {x} with x !$\wedge$!true {x} | false = refl !$\wedge$!true {x} | true = refl stmt1Cond : {c10 :!$\mathbb{N}$!} !$\rightarrow$! Cond stmt1Cond {c10} env = Equal (varn env) c10