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Theorem frnd 5282
Description: Deduction form of frn 5281. The range of a mapping. (Contributed by Glauco Siliprandi, 26-Jun-2021.)
Hypothesis
Ref Expression
frnd.1  |-  ( ph  ->  F : A --> B )
Assertion
Ref Expression
frnd  |-  ( ph  ->  ran  F  C_  B
)

Proof of Theorem frnd
StepHypRef Expression
1 frnd.1 . 2  |-  ( ph  ->  F : A --> B )
2 frn 5281 . 2  |-  ( F : A --> B  ->  ran  F  C_  B )
31, 2syl 14 1  |-  ( ph  ->  ran  F  C_  B
)
Colors of variables: wff set class
Syntax hints:    -> wi 4    C_ wss 3071   ran crn 4540   -->wf 5119
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106
This theorem depends on definitions:  df-bi 116  df-f 5127
This theorem is referenced by:  difinfsn  6985  ennnfonelemfun  11935  ennnfonelemf1  11936  tgrest  12343  resttopon  12345  rest0  12353  cnrest2r  12411  cnptoprest2  12414  lmss  12420  txbasval  12441  upxp  12446  uptx  12448  hmeores  12489  unirnblps  12596  unirnbl  12597
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