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Theorem basfn 29454
Description: Functionality of the base set extractor. MOVABLE (Contributed by Stefan O'Rear, 8-Jul-2015.)
Assertion
Ref Expression
basfn  |-  Base  Fn  _V

Proof of Theorem basfn
StepHypRef Expression
1 df-base 14178 . 2  |-  Base  = Slot  1
21slotfn 14187 1  |-  Base  Fn  _V
Colors of variables: wff setvar class
Syntax hints:   _Vcvv 2971    Fn wfn 5412   1c1 9282   Basecbs 14173
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1591  ax-4 1602  ax-5 1670  ax-6 1708  ax-7 1728  ax-9 1760  ax-10 1775  ax-11 1780  ax-12 1792  ax-13 1943  ax-ext 2423  ax-sep 4412  ax-nul 4420  ax-pr 4530
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3an 967  df-tru 1372  df-ex 1587  df-nf 1590  df-sb 1701  df-eu 2257  df-mo 2258  df-clab 2429  df-cleq 2435  df-clel 2438  df-nfc 2567  df-ne 2607  df-ral 2719  df-rex 2720  df-rab 2723  df-v 2973  df-sbc 3186  df-dif 3330  df-un 3332  df-in 3334  df-ss 3341  df-nul 3637  df-if 3791  df-sn 3877  df-pr 3879  df-op 3883  df-uni 4091  df-br 4292  df-opab 4350  df-mpt 4351  df-id 4635  df-xp 4845  df-rel 4846  df-cnv 4847  df-co 4848  df-dm 4849  df-iota 5380  df-fun 5419  df-fn 5420  df-fv 5425  df-slot 14177  df-base 14178
This theorem is referenced by:  isnumbasgrplem1  29455  isnumbasgrplem2  29458  dfacbasgrp  29462
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