Theorem ex-an

Description: Example for df-an . Example by David A. Wheeler. (Contributed by Mario Carneiro, 9-May-2015)

	Ref	Expression
Assertion	ex-an	⊢ ( 2 = 2 ∧ 3 = 3 )

Proof

Step	Hyp	Ref	Expression
1		eqid	⊢ 2 = 2
2		eqid	⊢ 3 = 3
3	1 2	pm3.2i	⊢ ( 2 = 2 ∧ 3 = 3 )