13 lines
459 B
Text
13 lines
459 B
Text
571.lean:6:2: error:invalid 'cases' tactic, 'Exists' can only eliminate to Prop
|
||
proof state:
|
||
P : ℕ → Prop,
|
||
H : ∃ (n : ℕ), P n
|
||
⊢ ℕ
|
||
571.lean:7:0: error: don't know how to synthesize placeholder
|
||
P : ℕ → Prop,
|
||
H : ∃ (n : ℕ), P n
|
||
⊢ ℕ
|
||
571.lean:7:0: error: failed to add declaration 'example' to environment, value has metavariables
|
||
remark: set 'formatter.hide_full_terms' to false to see the complete term
|
||
λ (P : …) (H : …),
|
||
?M_1
|