13 lines
305 B
Text
13 lines
305 B
Text
open tactic
|
|
|
|
constants (A : Type.{1}) (x y : A)
|
|
|
|
noncomputable definition f (z : A) : A := z
|
|
@[simp] definition f.def (z:A) : f z = z := rfl
|
|
|
|
definition foo (z₁ z₂ : A) : f z₁ = f z₂ → z₁ = z₂ :=
|
|
by do H ← intro `H,
|
|
trace_state,
|
|
dsimp_at H,
|
|
trace_state,
|
|
assumption
|