9e241a4087
This PR reverts #12000, which introduced a regression where `simp` incorrectly rejects valid rewrites for perm lemmas. The issue is that `NameGenerator.mkChild` creates names that don't maintain the ordering assumption used by `acLt` for perm lemma decisions. For example, after the change: - Child generator creates names like `_uniq.102.2` - Parent continues with `_uniq.7` - But `Name.lt (.num (.num `_uniq 102) 2) (.num `_uniq 7)` is true This causes fvars created later (in async tasks) to compare as smaller than fvars created earlier, breaking the assumption that later fvars compare greater according to `Name.lt`. Fixes #12136. 🤖 Prepared with [Claude Code](https://claude.com/claude-code) Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
20 lines
594 B
Text
20 lines
594 B
Text
{"textDocument": {"uri": "file:///533.lean"},
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"position": {"line": 4, "character": 10}}
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{"items":
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[{"label": "Foo",
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"kind": 6,
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"data": ["«external:file:///533.lean»", 4, 10, 0, "f_uniq.3"]},
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{"label": "F",
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"kind": 6,
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"data": ["«external:file:///533.lean»", 4, 10, 0, "f_uniq.7"]}],
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"isIncomplete": false}
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Resolution of Foo:
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{"label": "Foo",
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"kind": 6,
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"detail": "Sort ?u",
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"data": ["«external:file:///533.lean»", 4, 10, 0, "f_uniq.3"]}
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Resolution of F:
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{"label": "F",
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"kind": 6,
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"detail": "Sort ?u",
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"data": ["«external:file:///533.lean»", 4, 10, 0, "f_uniq.7"]}
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