Theorem axac10

Description: Characterization of choice similar to dffin1-5 . (Contributed by Stefan O'Rear, 6-Jan-2015)

	Ref	Expression
Assertion	axac10	$$⊢\approx \left[\mathrm{On}\right]=\mathrm{V}$$

Proof

Step	Hyp	Ref	Expression
1		axac3	$$⊢\mathrm{CHOICE}$$
2		dfac10b	$$⊢\mathrm{CHOICE}\leftrightarrow \approx \left[\mathrm{On}\right]=\mathrm{V}$$
3	1 2	mpbi	$$⊢\approx \left[\mathrm{On}\right]=\mathrm{V}$$