Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
This PR adds support for let configuration options (`(eq := h)`, `+nondep`, `+usedOnly`, `+zeta`) in `do` block `let` and `have` declarations, matching the behavior available in term-level `let`/`have`. Configuration options are rejected with `let mut` since they are incompatible with mutable bindings. `+postponeValue` and `+generalize` are also rejected in `do` blocks. Follow-up to #13250 which added the parser support. Now that stage0 is updated, this PR replaces the backward-compat index helpers with proper quotation patterns and implements the actual `letConfig` elaboration. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com> |
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