lean4-htt/old_tests/tests/lean/run/1943.lean
2018-04-10 12:56:55 -07:00

6 lines
123 B
Text

open tactic
meta def c := abstract `[assumption]
structure B (U : Type) :=
(f : U → U)
(w : ∀ u : U, f u = u . c)