Theorem f1rel 5327

Description: A one-to-one onto mapping is a relation. (Contributed by NM, 8-Mar-2014.)

Assertion

Ref	Expression
f1rel	|- ( F : A -1-1-> B -> Rel F )

Proof of Theorem f1rel

Step	Hyp	Ref	Expression
1		f1fn 5325	. 2 |- ( F : A -1-1-> B -> F Fn A )
2		fnrel 5216	. 2 |- ( F Fn A -> Rel F )
3	1, 2	syl 14	1 |- ( F : A -1-1-> B -> Rel F )

Syntax hints:   -> wi 4   Rel wrel 4539   Fn wfn 5113   -1-1->wf1 5115

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105

This theorem depends on definitions:  df-bi 116  df-fun 5120  df-fn 5121  df-f 5122  df-f1 5123

This theorem is referenced by:  f1dmvrnfibi  6825