ax-frege54c - Mathbox for Richard Penner

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Axiom ax-frege54c 40228

Description: Reflexive equality of sets (as classes). Part of Axiom 54 of [Frege1879] p. 50. Identical to eqid 2819. (Contributed by RP, 24-Dec-2019.) (New usage is discouraged.)

**Assertion**
Ref	Expression
ax-frege54c	⊢ 𝐴 = 𝐴

**Detailed syntax breakdown of Axiom ax-frege54c**
Step	Hyp	Ref	Expression
1		cA	. 2 class 𝐴
2	1, 1	wceq 1531	1 wff 𝐴 = 𝐴

Colors of variables: wff setvar class

This axiom is referenced by: frege54b 40229

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