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Use eval! to evaluate functions that use sorry.#133

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lcrh wants to merge 1 commit intoleanprover:masterfrom
lcrh:override_safety_warning_eval_sorry
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Use eval! to evaluate functions that use sorry.#133
lcrh wants to merge 1 commit intoleanprover:masterfrom
lcrh:override_safety_warning_eval_sorry

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@lcrh lcrh commented Oct 23, 2024

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lcrh commented Oct 23, 2024

Perhaps the behavior changed here from previous versions of lean, but running the code from the book locally in vscode, I got the following error:

cannot evaluate expression that depends on the `sorry` axiom.
Use `#eval!` to evaluate nevertheless (which may cause lean to crash).

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