Metamath Proof Explorer

Theorem axfrege54c

Description: Reflexive equality of classes. Identical to eqid . Justification for ax-frege54c . (Contributed by RP, 24-Dec-2019)

Ref Expression
Assertion axfrege54c 
|- A = A

Proof

Step Hyp Ref Expression
1 eqid 
 |-  A = A