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Theorem fssd 5294
 Description: Expanding the codomain of a mapping, deduction form. (Contributed by Glauco Siliprandi, 11-Dec-2019.)
Hypotheses
Ref Expression
fssd.f
fssd.b
Assertion
Ref Expression
fssd

Proof of Theorem fssd
StepHypRef Expression
1 fssd.f . 2
2 fssd.b . 2
3 fss 5293 . 2
41, 2, 3syl2anc 409 1
 Colors of variables: wff set class Syntax hints:   wi 4   wss 3077  wf 5128 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-5 1424  ax-7 1425  ax-gen 1426  ax-ie1 1470  ax-ie2 1471  ax-8 1483  ax-11 1485  ax-4 1488  ax-17 1507  ax-i9 1511  ax-ial 1515  ax-i5r 1516  ax-ext 2122 This theorem depends on definitions:  df-bi 116  df-nf 1438  df-sb 1737  df-clab 2127  df-cleq 2133  df-clel 2136  df-in 3083  df-ss 3090  df-f 5136 This theorem is referenced by:  mapss  6594  ac6sfi  6801  fseq1p1m1  9925  resqrexlemcvg  10843  resqrexlemsqa  10848  climcvg1nlem  11170  fsumcl2lem  11219  ennnfonelemh  11973  cnrest2  12464  cnptoprest2  12468  cncfss  12798  limccnpcntop  12872  dvcoapbr  12899  dvef  12916  isomninnlem  13419  trilpolemisumle  13427  iswomninnlem  13438  ismkvnnlem  13441
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