joachim/issue14961 - #14964
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…ee variables This PR fixes `simp` producing a proof with free variables, rejected by the kernel with "declaration has free variables", when the same `match` application occurs in two branches of a `dite`. This also affected the equation lemmas generated for well-founded definitions containing such a term. `simp` caches results by expression, so the proof of a cached result must not mention local hypotheses that `simp` introduced itself while descending into the term (see `Methods.wellBehavedDischarge`). `dischargeEqnThmHypothesis?` violated this: proving a match-equation side condition substitutes a discriminant, and `subst` reverts every hypothesis depending on it, pulling e.g. the `dite` hypothesis into the proof. It now clears those hypotheses from the goal first; `tryClearMany` keeps the ones the side condition itself depends on. Closes #14961. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Nk92q7cJwjqGyg8kep2Gyi
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deprecatedusage warning (feat: add hint to transitivedeprecatedusage warning #14841)casesOnfor propositions from projections (fix: buildcasesOnfor propositions from projections #14925)Natoperations inbv_decide(feat: support some symbolicNatoperations inbv_decide#14928)leanchecker-paranoidbinary with mimalloc mitigations (feat: add aleanchecker-paranoidbinary with mimalloc mitigations #14884)leanchecker-paranoidneeds (perf: initialize only the core modulesleanchecker-paranoidneeds #14936)simpresults cached with a proof that has free variables