`unliftEquality`🔗

Definition

Unlifts an equality expression that has been lifted to a common universe level using the registered unlifting functions and finisher functions.

def

unliftEquality (eq : Lean.Expr) : Lean.MetaM (Lean.Expr × Lean.Expr)
unliftEquality (eq : Lean.Expr) :
  Lean.MetaM (Lean.Expr × Lean.Expr)

Code

def unliftEquality := transformEquality getLevelFromEq unliftImplRef unliftFinisherRef

Actions: Source · Open Issue

Meaning last changed in v4.34.0-rc2-1-g439785b (2026-08-23).

Self-contained, with its dependencies inlined and proofs replaced by sorry: download the raw file · open it in the Lean web editor.

Dependency graph

Audit surface: 7 project declarations, 124 external constants

✓ Proved: no sorry anywhere in its closure

This is the tool's own reading of one build's recorded axioms, and it is not robust against an author who wants it to pass. Checking meant to be relied on should go through Comparator, which replays the proof through the kernel from an export against an explicit list of permitted axioms.

unliftEquality🔗

`unliftEquality`🔗