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Theorem fnovrn 5590
Description: An operation's value belongs to its range. (Contributed by NM, 10-Feb-2007.)
Assertion
Ref Expression
fnovrn ((𝐹 Fn (A × B) 𝐶 A 𝐷 B) → (𝐶𝐹𝐷) ran 𝐹)

Proof of Theorem fnovrn
StepHypRef Expression
1 opelxpi 4319 . . 3 ((𝐶 A 𝐷 B) → ⟨𝐶, 𝐷 (A × B))
2 df-ov 5458 . . . 4 (𝐶𝐹𝐷) = (𝐹‘⟨𝐶, 𝐷⟩)
3 fnfvelrn 5242 . . . 4 ((𝐹 Fn (A × B) 𝐶, 𝐷 (A × B)) → (𝐹‘⟨𝐶, 𝐷⟩) ran 𝐹)
42, 3syl5eqel 2121 . . 3 ((𝐹 Fn (A × B) 𝐶, 𝐷 (A × B)) → (𝐶𝐹𝐷) ran 𝐹)
51, 4sylan2 270 . 2 ((𝐹 Fn (A × B) (𝐶 A 𝐷 B)) → (𝐶𝐹𝐷) ran 𝐹)
653impb 1099 1 ((𝐹 Fn (A × B) 𝐶 A 𝐷 B) → (𝐶𝐹𝐷) ran 𝐹)
Colors of variables: wff set class
Syntax hints:  wi 4   wa 97   w3a 884   wcel 1390  cop 3370   × cxp 4286  ran crn 4289   Fn wfn 4840  cfv 4845  (class class class)co 5455
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100  ax-ia3 101  ax-io 629  ax-5 1333  ax-7 1334  ax-gen 1335  ax-ie1 1379  ax-ie2 1380  ax-8 1392  ax-10 1393  ax-11 1394  ax-i12 1395  ax-bnd 1396  ax-4 1397  ax-14 1402  ax-17 1416  ax-i9 1420  ax-ial 1424  ax-i5r 1425  ax-ext 2019  ax-sep 3866  ax-pow 3918  ax-pr 3935
This theorem depends on definitions:  df-bi 110  df-3an 886  df-tru 1245  df-nf 1347  df-sb 1643  df-eu 1900  df-mo 1901  df-clab 2024  df-cleq 2030  df-clel 2033  df-nfc 2164  df-ral 2305  df-rex 2306  df-v 2553  df-sbc 2759  df-un 2916  df-in 2918  df-ss 2925  df-pw 3353  df-sn 3373  df-pr 3374  df-op 3376  df-uni 3572  df-br 3756  df-opab 3810  df-id 4021  df-xp 4294  df-rel 4295  df-cnv 4296  df-co 4297  df-dm 4298  df-rn 4299  df-iota 4810  df-fun 4847  df-fn 4848  df-fv 4853  df-ov 5458
This theorem is referenced by:  unirnioo  8572  ioorebasg  8574
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