Theorem funcrn ≪ | index | src | ≫

theorem funcrn (A B F: set): $ func F A B -> Ran F C_ B $;

Step	Hyp	Ref	Expression
1		anr	isfun F /\ Dom F == A /\ Ran F C_ B -> Ran F C_ B
2	1	conv func	func F A B -> Ran F C_ B

Axiom use

axs_prop_calc (ax_1, ax_2, ax_3, ax_mp)