lean2/tests/lean/beginend_bug.lean.expected.out

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beginend_bug.lean:7:2: error:invalid 'apply' tactic, failed to unify
a = ?M_1
with
b = c
proof state:
A : Type,
a b c : A,
Hab : a = b,
Hbc : b = c
⊢ a = ?M_1
A : Type,
a b c : A,
Hab : a = b,
Hbc : b = c
⊢ ?M_1 = c
beginend_bug.lean:9:0: error: don't know how to synthesize placeholder
A : Type,
a b c : A,
Hab : a = b,
Hbc : b = c
⊢ a = c
beginend_bug.lean:9:0: error: failed to add declaration 'foo' to environment, value has metavariables
remark: set 'formatter.hide_full_terms' to false to see the complete term
λ (A : Type) (a b c : A) (Hab : …) (Hbc : …),
?M_1