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`le_zero` suggested proof contains symbol that is not mentioned #77

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hauleth opened this issue Oct 9, 2024 · 0 comments

hauleth commented Oct 9, 2024

Proposed solution contains ⊢:

cases x with y
left
rfl
rw [one_eq_succ_zero] at hx ⊢ -- here
apply succ_le_succ at hx
apply le_zero at hx
rw [hx]
right
rfl

It is not described anywhere nor it is described how to enter such symbol.

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