lean4-htt/tests/lean/run/1577.lean

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Text

section
parameter T : Type
def eqT : T -> T -> Prop
| t1 t2 := t1 = t2
lemma sm : forall t1 t2,
eqT t1 t2 ->
t1 = t2 :=
begin
intros,
simp [eqT] at a,
assumption
end
end