rfl tactic extension for reflexive relations

This extends the rfl tactic so that it works on any reflexive relation, provided the reflexivity lemma has been marked as @[refl].

def Lean.Meta.Rfl.reflExt.config : Lean.Meta.WhnfCoreConfig

Discrimation tree settings for the refl extension.

Equations

• Lean.Meta.Rfl.reflExt.config = { iota := true, beta := true, proj := Lean.Meta.ProjReductionKind.yesWithDelta, zeta := true, zetaDelta := true }

opaque Lean.Meta.Rfl.reflExt : Lean.SimpleScopedEnvExtension (Lean.Name × Array Lean.Meta.DiscrTree.Key) (Lean.Meta.DiscrTree Lean.Name)

Environment extensions for refl lemmas

def Lean.MVarId.applyRfl (goal : Lean.MVarId) : Lean.MetaM Unit

MetaM version of the rfl tactic.

This tactic applies to a goal whose target has the form x ~ x, where ~ is a reflexive relation, that is, equality or another relation which has a reflexive lemma tagged with the attribute [refl].

Equations

• One or more equations did not get rendered due to their size.

def Lean.MVarId.liftReflToEq (mvarId : Lean.MVarId) : Lean.MetaM Lean.MVarId

Convert a goal of the form x ~ y into the form x = y, where ~ is a reflexive relation, that is, a relation which has a reflexive lemma tagged with the attribute @[refl]. If this can't be done, returns the original MVarId.

Equations

• One or more equations did not get rendered due to their size.