13 lines
474 B
Text
13 lines
474 B
Text
subst_bug.lean:4:2: error:invalid 'subst' tactic, 'a' occurs in the other side of the equation
|
||
proof state:
|
||
f : ℕ → ℕ,
|
||
a b : ℕ,
|
||
h₁ : f a = a
|
||
⊢ f (f a) = a
|
||
subst_bug.lean:5:0: error: don't know how to synthesize placeholder
|
||
f : ℕ → ℕ,
|
||
a b : ℕ
|
||
⊢ f a = a → f (f a) = a
|
||
subst_bug.lean:5:0: error: failed to add declaration 'example' to environment, value has metavariables
|
||
remark: set 'formatter.hide_full_terms' to false to see the complete term
|
||
?M_1
|