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Theorem freld 39425
Description: A mapping is a relation. (Contributed by Glauco Siliprandi, 26-Jun-2021.)
Hypothesis
Ref Expression
freld.1  |-  ( ph  ->  F : A --> B )
Assertion
Ref Expression
freld  |-  ( ph  ->  Rel  F )

Proof of Theorem freld
StepHypRef Expression
1 freld.1 . 2  |-  ( ph  ->  F : A --> B )
2 frel 6050 . 2  |-  ( F : A --> B  ->  Rel  F )
31, 2syl 17 1  |-  ( ph  ->  Rel  F )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4   Rel wrel 5119   -->wf 5884
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8
This theorem depends on definitions:  df-bi 197  df-an 386  df-fun 5890  df-fn 5891  df-f 5892
This theorem is referenced by:  limsupvaluz  39940  sssmf  40947
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