lean4-htt/tests/lean/run/cases_bug3.lean
2016-09-12 17:41:22 -07:00

4 lines
125 B
Text

set_option new_elaborator true
theorem ex {A : Type} : ∀ {a a' : A}, a == a' → a = a'
| a .a (heq.refl .a) := eq.refl a