lean4-htt/tests/lean/4845.lean.expected.out
Yann Herklotz 19ce2040a2
fix: wildcard generalize only generalizes visible theorems (#4846)
`generalize ... at *` sometimes will try to modify the recursive
hypothesis corresponding to the current theorem being defined, which may
not be the expected behaviour. It should only try to `generalize`
hypotheses that it can actually modify and are visible, not
implementation details. Otherwise this means that there are
discrepancies between `generalize ... at *` and `generalize ... at H`,
even though `H` is the only hypothesis in the context.

This commit uses `getLocalHyps` instead of `getFVarIds` to get the
current valid `FVarIds` in the context. This uses
`isImplementationDetail` to filter out `FVarIds` that are implementation
details in the context and are not visible to the user and should not be
manipulated by `generalize`.

Closes #4845
2024-10-25 05:09:28 +00:00

4 lines
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Text

z : Nat
_H : 0 = z
H : z = z
⊢ True