Leonardo de Moura 73751bbb27 fix: interaction between simp and backward.whnf.reducibleClassField (#12622) ... This PR fixes a bug where `simp` made no progress on class projection reductions when `backward.whnf.reducibleClassField` is `true`. - In `reduceProjFn?`, for class projections applied to constructor instances (`Class.projFn (Class.mk ...)`), the code called `reduceProjCont? (← unfoldDefinitionAny? e)`. The helper `reduceProjCont?` expects the unfolded result to have a `.proj` head so it can apply `reduceProj?`. However, when `reducibleClassField` is enabled, `unfoldDefault` in WHNF.lean already reduces the `.proj` node during unfolding, so `reduceProjCont?` discards the fully-reduced result. - The fix uses `unfoldDefinitionAny?` directly, bypassing `reduceProjCont?`. The dsimp traversal revisits the result (via `.visit`) and handles any remaining `.proj` nodes naturally. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>		2026-02-20 16:37:11 +00:00
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bench	test: use Sym.simp to unfold in VCGen benchmarks (#12593)	2026-02-19 14:42:54 +00:00
bench-radar	chore: fail benchmarks if lakeprof upload fails (#12313)	2026-02-04 15:53:33 +00:00
compiler	chore: remove orphaned *.expected.out files (#12357)	2026-02-06 17:05:43 +00:00
elabissues
ir
lake	feat: lake: system-wide cache configuration (#12490)	2026-02-20 05:48:58 +00:00
lean	fix: interaction between simp and backward.whnf.reducibleClassField (#12622)	2026-02-20 16:37:11 +00:00
pkg	refactor: rename instance_reducible to implicit_reducible (#12567)	2026-02-18 22:19:16 +00:00
playground
plugin
simpperf
.gitignore
CMakeLists.txt	chore: remove outdated trust0 test (#12401)	2026-02-10 13:07:10 +00:00
common.sh	feat: re-integrate lean4checker as leanchecker (#11887)	2026-01-08 09:41:33 +00:00
lakefile.toml
lean-toolchain