Theorem frel 5277

Description: A mapping is a relation. (Contributed by NM, 3-Aug-1994.)

Assertion

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

Proof of Theorem frel

Step	Hyp	Ref	Expression
1		ffn 5272	. 2 |- ( F : A --> B -> F Fn A )
2		fnrel 5221	. 2 |- ( F Fn A -> Rel F )
3	1, 2	syl 14	1 |- ( F : A --> B -> Rel F )

Syntax hints:   -> wi 4   Rel wrel 4544   Fn wfn 5118   -->wf 5119

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 5125  df-fn 5126  df-f 5127

This theorem is referenced by:  fssxp  5290  fsn  5592  eluzel2  9331  hmeocnv  12476  metn0  12547