Users' Mathboxes Mathbox for Glauco Siliprandi < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >   Mathboxes  >  fvmptelcdmf Structured version   Visualization version   GIF version

Theorem fvmptelcdmf 45699
Description: The value of a function at a point of its domain belongs to its codomain. (Contributed by Glauco Siliprandi, 5-Jan-2025.)
Hypotheses
Ref Expression
fvmptelcdmf.a 𝑥𝐴
fvmptelcdmf.c 𝑥𝐶
fvmptelcdmf.f (𝜑 → (𝑥𝐴𝐵):𝐴𝐶)
Assertion
Ref Expression
fvmptelcdmf ((𝜑𝑥𝐴) → 𝐵𝐶)

Proof of Theorem fvmptelcdmf
StepHypRef Expression
1 fvmptelcdmf.f . . 3 (𝜑 → (𝑥𝐴𝐵):𝐴𝐶)
2 fvmptelcdmf.a . . . 4 𝑥𝐴
3 fvmptelcdmf.c . . . 4 𝑥𝐶
4 eqid 2736 . . . 4 (𝑥𝐴𝐵) = (𝑥𝐴𝐵)
52, 3, 4fmptff 45698 . . 3 (∀𝑥𝐴 𝐵𝐶 ↔ (𝑥𝐴𝐵):𝐴𝐶)
61, 5sylibr 234 . 2 (𝜑 → ∀𝑥𝐴 𝐵𝐶)
76r19.21bi 3229 1 ((𝜑𝑥𝐴) → 𝐵𝐶)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395  wcel 2114  wnfc 2883  wral 3051  cmpt 5166  wf 6494
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2708  ax-sep 5231  ax-pr 5375
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2539  df-eu 2569  df-clab 2715  df-cleq 2728  df-clel 2811  df-nfc 2885  df-ral 3052  df-rex 3062  df-rab 3390  df-v 3431  df-sbc 3729  df-csb 3838  df-dif 3892  df-un 3894  df-in 3896  df-ss 3906  df-nul 4274  df-if 4467  df-sn 4568  df-pr 4570  df-op 4574  df-br 5086  df-opab 5148  df-mpt 5167  df-id 5526  df-xp 5637  df-rel 5638  df-cnv 5639  df-co 5640  df-dm 5641  df-rn 5642  df-res 5643  df-ima 5644  df-fun 6500  df-fn 6501  df-f 6502
This theorem is referenced by:  smfdivdmmbl  47266
  Copyright terms: Public domain W3C validator