Coq is a formal proof management system. It provides a formal language to write mathematical definitions, executable algorithms and theorems together with an environment for semi-interactive development of machine-checked proofs.
Set Implicit Arguments.
Require Import Logic.
Global Set Universe Polymorphism.
Global Set Asymmetric Patterns.
Local Set Record Elimination Schemes.
Local Set Primitive Projections.
Record prod (A B : Type) : Type :=
pair { fst : A; snd : B }.
Check fun x : prod Set Set => eq_refl : x = pair (fst x) (snd x).
fails. Has eta for records been removed from trunk-polyproj? Is it still slated for 8.5?
fails. Has eta for records been removed from trunk-polyproj? Is it still slated for 8.5?