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Theorem cicfn 49897
Description: 𝑐 is a function on Cat. (Contributed by Zhi Wang, 26-Oct-2025.)
Assertion
Ref Expression
cicfn 𝑐 Fn Cat

Proof of Theorem cicfn
StepHypRef Expression
1 ovex 7453 . 2 ((Iso‘𝑐) supp ∅) ∈ V
2 df-cic 17880 . 2 𝑐 = (𝑐 ∈ Cat ↦ ((Iso‘𝑐) supp ∅))
31, 2fnmpti 6683 1 𝑐 Fn Cat
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  c0 4286   Fn wfn 6536  cfv 6541  (class class class)co 7420   supp csupp 8163  Catccat 17747  Isociso 17830  𝑐 ccic 17879
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2148  ax-9 2156  ax-10 2179  ax-11 2195  ax-12 2216  ax-ext 2737  ax-sep 5259  ax-nul 5271  ax-pr 5406
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2569  df-eu 2599  df-clab 2744  df-cleq 2757  df-clel 2840  df-nfc 2914  df-ne 2961  df-ral 3082  df-rex 3092  df-rab 3419  df-v 3459  df-dif 3909  df-un 3911  df-in 3913  df-ss 3923  df-nul 4287  df-if 4490  df-sn 4592  df-pr 4594  df-op 4598  df-uni 4875  df-br 5112  df-opab 5176  df-mpt 5195  df-id 5558  df-xp 5669  df-rel 5670  df-cnv 5671  df-co 5672  df-dm 5673  df-iota 6497  df-fun 6543  df-fn 6544  df-fv 6549  df-ov 7423  df-cic 17880
This theorem is used by:  cicrcl2  49898  cic1st2nd  49902
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