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EasyCrypt / easycrypt

EasyCrypt: Computer-Aided Cryptographic Proofs
MIT License
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feature request: comparison of record literals should simply to the conjunction of components #551

Closed alleystoughton closed 5 months ago

alleystoughton commented 5 months ago

When tuple literals are compared, it would be good to reduce them to the conjunction of the comparison of their fields, analogously to what happens with comparison of tuple literals.

E.g.,

type t = { x: int; y: int }.

lemma L x y :
  x = 0 => y = 1 => {| x = x; y = y |} = {| x = 0; y = 1 |}.
proof. move=> xE yE /=; split; assumption. qed.