TODO: remove `OptionM` after update stage0 see: https://leanprover.zulipchat.com/#narrow/stream/270676-lean4/topic/Do.20we.20still.20need.20OptionM.3F/near/279761084
4 lines
125 B
Text
4 lines
125 B
Text
example (foo bar : Option Nat) : False := by
|
|
have : do { let x ← bar; foo } = bar >>= fun x => foo := rfl
|
|
admit
|
|
done
|