lean4-htt/tests/pkg/module
Leonardo de Moura b668a18a9d
refactor: rename instance_reducible to implicit_reducible (#12567)
This PR renames `instance_reducible` to `implicit_reducible` and adds a
new
`backward.isDefEq.implicitBump` option to prepare for treating all
implicit
arguments uniformly during definitional equality checking.

## Changes

**Rename `instance_reducible` → `implicit_reducible`:**
- Rename `ReducibilityStatus.instanceReducible` constructor to
`implicitReducible`
- Register new `[implicit_reducible]` attribute, keep
`[instance_reducible]` as alias
- Rename `isInstanceReducible` → `isImplicitReducible` (with deprecated
aliases)
- Update all references across src/ and tests/

The rename reflects that this reducibility level is used not just for
instances
but for any definition that needs unfolding during implicit argument
resolution
(e.g., `Nat.add`, `Array.size`).

**Add `backward.isDefEq.implicitBump` option:**
- When `true` (+ `respectTransparency`), bumps transparency to
`.instances` for
ALL implicit arguments in `isDefEqArgs`, not just instance-implicit ones
- Defaults to `false` for staging compatibility — will be flipped to
`true` after
  stage0 update
- Adds `// update me!` to `stage0/src/stdlib_flags.h` to trigger CI
stage0 update

## Follow-up (after stage0 update)
- Flip `backward.isDefEq.implicitBump` default to `true`
- Fix resulting test/module failures

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-18 22:19:16 +00:00
..
Module refactor: rename instance_reducible to implicit_reducible (#12567) 2026-02-18 22:19:16 +00:00
lakefile.toml feat: module system is no longer experimental (#11637) 2025-12-12 21:20:26 +00:00
lean-toolchain feat: move non-essential metadata into .olean.server (#8068) 2025-04-24 08:12:26 +00:00
Module.lean fix: privacy checks and import all (#10550) 2025-09-26 13:26:10 +00:00
test.sh fix: import-merging theorems under the module system (#10556) 2025-09-26 13:02:51 +00:00