Theorem func1st2nd 49010

Description: Rewrite the functor predicate with separated parts. (Contributed by Zhi Wang, 19-Oct-2025.)

Hypothesis

Ref	Expression
func1st2nd.1	⊢ (𝜑 → 𝐹 ∈ (𝐶 Func 𝐷))

Assertion

Ref	Expression
func1st2nd	⊢ (𝜑 → (1st ‘𝐹)(𝐶 Func 𝐷)(2nd ‘𝐹))

Proof of Theorem func1st2nd

Step	Hyp	Ref	Expression
1		relfunc 17880	. 2 ⊢ Rel (𝐶 Func 𝐷)
2		func1st2nd.1	. 2 ⊢ (𝜑 → 𝐹 ∈ (𝐶 Func 𝐷))
3		1st2ndbr 8046	. 2 ⊢ ((Rel (𝐶 Func 𝐷) ∧ 𝐹 ∈ (𝐶 Func 𝐷)) → (1st ‘𝐹)(𝐶 Func 𝐷)(2nd ‘𝐹))
4	1, 2, 3	sylancr 587	1 ⊢ (𝜑 → (1st ‘𝐹)(𝐶 Func 𝐷)(2nd ‘𝐹))

Syntax hints:   → wi 4   ∈ wcel 2109   class class class wbr 5124  Rel wrel 5664  ‘cfv 6536  (class class class)co 7410  1^st c1st 7991  2^nd c2nd 7992   Func cfunc 17872

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2008  ax-8 2111  ax-9 2119  ax-10 2142  ax-11 2158  ax-12 2178  ax-ext 2708  ax-sep 5271  ax-nul 5281  ax-pr 5407  ax-un 7734

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2066  df-mo 2540  df-eu 2569  df-clab 2715  df-cleq 2728  df-clel 2810  df-nfc 2886  df-ral 3053  df-rex 3062  df-rab 3421  df-v 3466  df-sbc 3771  df-csb 3880  df-dif 3934  df-un 3936  df-in 3938  df-ss 3948  df-nul 4314  df-if 4506  df-sn 4607  df-pr 4609  df-op 4613  df-uni 4889  df-iun 4974  df-br 5125  df-opab 5187  df-mpt 5207  df-id 5553  df-xp 5665  df-rel 5666  df-cnv 5667  df-co 5668  df-dm 5669  df-rn 5670  df-res 5671  df-ima 5672  df-iota 6489  df-fun 6538  df-fv 6544  df-ov 7413  df-oprab 7414  df-mpo 7415  df-1st 7993  df-2nd 7994  df-func 17876

This theorem is referenced by:  func0g2  49022  idfu1stalem  49026  idfu2nda  49029  oppfoppc2  49052  funcoppc4  49054  idfth  49065  idsubc  49066  diag1f1  49185  diag2f1  49187  fuco11b  49215  fucocolem1  49231  fucocolem2  49232  fucocolem3  49233  fucocolem4  49234  fucoco  49235  fucolid  49239  fucorid  49240  fucorid2  49241  postcofval  49242  postcofcl  49243  precofval  49245  precofval2  49247  precofcl  49248  prcoftposcurfucoa  49261  prcof1  49265  prcof2a  49266  prcof2  49267  prcof22a  49269  isinito2lem  49350  termcfuncval  49384  diag1f1olem  49385  diagffth  49390  lanval  49461  ranval  49462  lanup  49482  ranup  49483  islmd  49502  iscmd  49503