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].

opaque Std.Tactic.reflExt : Lean.SimpleScopedEnvExtension (Lean.Name × Array (Lean.Meta.DiscrTree.Key true)) (Lean.Meta.DiscrTree Lean.Name true)

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, a relation which has a reflexive lemma tagged with the attribute [refl].

Equations

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