Theorem biref-P2.6a 123

Description: Equivalence Property: '↔' Reflexivity.

Assertion

Ref	Expression
biref-P2.6a	⊢ (𝜑 ↔ 𝜑)

Proof of Theorem biref-P2.6a

Step	Hyp	Ref	Expression
1		id-P1.4 36	. 2 ⊢ (𝜑 → 𝜑)
2	1, 1	bicmb-P2.5c.2SH 120	1 ⊢ (𝜑 ↔ 𝜑)

Syntax hints:   ↔ wff-bi 104

This theorem was proved from axioms:  ax-L1 11  ax-L2 12  ax-L3 13  ax-MP 14

This theorem depends on definitions:  df-bi-D2.1 107

This theorem is referenced by: (None)