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Theorem bj-evalfun 37128
Description: The evaluation at a class is a function. (Contributed by BJ, 27-Dec-2021.)
Assertion
Ref Expression
bj-evalfun Fun Slot 𝐴

Proof of Theorem bj-evalfun
Dummy variable 𝑓 is distinct from all other variables.
StepHypRef Expression
1 df-slot 17103 . 2 Slot 𝐴 = (𝑓 ∈ V ↦ (𝑓𝐴))
21funmpt2 6528 1 Fun Slot 𝐴
Colors of variables: wff setvar class
Syntax hints:  Vcvv 3438  Fun wfun 6483  cfv 6489  Slot cslot 17102
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1968  ax-7 2009  ax-8 2115  ax-9 2123  ax-10 2146  ax-11 2162  ax-12 2182  ax-ext 2705  ax-sep 5238  ax-nul 5248  ax-pr 5374
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-nf 1785  df-sb 2068  df-mo 2537  df-eu 2566  df-clab 2712  df-cleq 2725  df-clel 2808  df-nfc 2883  df-ral 3050  df-rex 3059  df-rab 3398  df-v 3440  df-dif 3902  df-un 3904  df-ss 3916  df-nul 4285  df-if 4477  df-sn 4578  df-pr 4580  df-op 4584  df-br 5096  df-opab 5158  df-mpt 5177  df-id 5516  df-xp 5627  df-rel 5628  df-cnv 5629  df-co 5630  df-fun 6491  df-slot 17103
This theorem is referenced by: (None)
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