`getMaxLvl`🔗

Definition

Gets the maximum universe level from an equality expression by collecting all universe levels from the left-hand side and right-hand side of the equality.

def

getMaxLvl (eq : Lean.Expr) : Lean.MetaM Lean.Level
getMaxLvl (eq : Lean.Expr) :
  Lean.MetaM Lean.Level

Code

def getMaxLvl (eq : Expr) : MetaM Level := do
  let univs ← collectExprUniverses eq
  computeMaxLevel univs

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: 3 project declarations, 75 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.

getMaxLvl🔗

`getMaxLvl`🔗