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Theorem f1rn 5594
Description: The range of a one-to-one mapping. (Contributed by BJ, 6-Jul-2022.)
Assertion
Ref Expression
f1rn  |-  ( F : A -1-1-> B  ->  ran  F  C_  B )

Proof of Theorem f1rn
StepHypRef Expression
1 f1f 5593 . 2  |-  ( F : A -1-1-> B  ->  F : A --> B )
2 frn 5537 . 2  |-  ( F : A --> B  ->  ran  F  C_  B )
31, 2syl 14 1  |-  ( F : A -1-1-> B  ->  ran  F  C_  B )
Colors of variables: wff set class
Syntax hints:    -> wi 4    C_ wss 3220   ran crn 4770   -->wf 5368   -1-1->wf1 5369
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107
This theorem depends on definitions:  df-bi 117  df-f 5376  df-f1 5377
This theorem is referenced by:  fun11iun  5655  f1dmex  6335  f1finf1o  7254  caserel  7417  djudom  7423  exmidfodomrlemim  7543  hashf1lem2  11264  usgruspgrben  16341  domomsubct  16945
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