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chore(lean4): bump toolchain v4.12.0 -> v4.34.1 (P0-3) #213

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Merged
hyperpolymath merged 1 commit into from
Oct 2, 2026
Merged

chore(lean4): bump toolchain v4.12.0 -> v4.34.1 (P0-3) #213

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2 changes: 1 addition & 1 deletion .github/workflows/rust-cli.yml
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Expand Up @@ -75,7 +75,7 @@ jobs:
# verify its SHA-256, then execute it — no `curl | sh`.
curl -sSfL https://raw.githubusercontent.com/leanprover/elan/v3.1.1/elan-init.sh -o elan-init.sh
echo "f5d473c923c093759ae3839073bec2a58e82cb8bc0e4083930e76090da75b310 elan-init.sh" | sha256sum -c -
sh elan-init.sh -y --default-toolchain leanprover/lean4:v4.12.0
sh elan-init.sh -y --default-toolchain leanprover/lean4:v4.34.1
rm -f elan-init.sh
echo "$HOME/.elan/bin" >> $GITHUB_PATH

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2 changes: 1 addition & 1 deletion proofs/lean4/PathTraversal.lean
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Expand Up @@ -99,7 +99,7 @@ theorem isPrefix_dropLast
-- (since t :: ts is non-empty), so xs is still a prefix.
refine ⟨(t :: ts).dropLast, ?_⟩
subst htail
rw [List.dropLast_append_of_ne_nil _ (List.cons_ne_nil t ts)]
rw [List.dropLast_append_of_ne_nil (List.cons_ne_nil t ts)]

-- ---------------------------------------------------------------------
-- Per-step invariant
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2 changes: 1 addition & 1 deletion proofs/lean4/SymlinkOperations.lean
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Expand Up @@ -58,7 +58,7 @@ theorem symlink_unlink_reversible (p : Path) (fs : Filesystem)
exact ⟨node, hfs⟩
· simp [h]

/-- Summary:
/- Summary:
✓ Symlink creation and removal operations
✓ Preconditions for safe symlink creation
✓ Reversibility: unlink(symlink(p, fs)) = fs
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8 changes: 7 additions & 1 deletion proofs/lean4/lakefile.lean
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@@ -1,7 +1,13 @@
-- SPDX-License-Identifier: MPL-2.0
-- Valence Shell — Lean 4 Proof Package
--
-- Last verified working: Lean 4 v4.12.0 (2026-03-10)
-- Last verified working: Lean 4 v4.34.1 (2026-10-02)
-- Builds clean: FilesystemModel, FileOperations, FilesystemComposition,
-- FilesystemEquivalence, SymlinkOperations, Extraction, CrashConsistency,
-- PathTraversal, model_oracle.
-- Do NOT build (already broken on v4.12.0, not port regressions):
-- FileContentOperations, RMOOperations, CopyMoveOperations,
-- PermissionOperations.
-- Toolchain pinned in: lean-toolchain
-- CI workflow: .github/workflows/lean-verification.yml
-- .github/workflows/rust-cli.yml (lean4 job)
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2 changes: 1 addition & 1 deletion proofs/lean4/lean-toolchain
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@@ -1 +1 @@
leanprover/lean4:v4.12.0
leanprover/lean4:v4.34.1
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