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Theorem fnfvrnss 6976
Description: An upper bound for range determined by function values. (Contributed by NM, 8-Oct-2004.)
Assertion
Ref Expression
fnfvrnss ((𝐹 Fn 𝐴 ∧ ∀𝑥𝐴 (𝐹𝑥) ∈ 𝐵) → ran 𝐹𝐵)
Distinct variable groups:   𝑥,𝐴   𝑥,𝐵   𝑥,𝐹

Proof of Theorem fnfvrnss
StepHypRef Expression
1 ffnfv 6974 . 2 (𝐹:𝐴𝐵 ↔ (𝐹 Fn 𝐴 ∧ ∀𝑥𝐴 (𝐹𝑥) ∈ 𝐵))
2 frn 6591 . 2 (𝐹:𝐴𝐵 → ran 𝐹𝐵)
31, 2sylbir 234 1 ((𝐹 Fn 𝐴 ∧ ∀𝑥𝐴 (𝐹𝑥) ∈ 𝐵) → ran 𝐹𝐵)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395  wcel 2108  wral 3063  wss 3883  ran crn 5581   Fn wfn 6413  wf 6414  cfv 6418
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-sep 5218  ax-nul 5225  ax-pr 5347
This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2817  df-nfc 2888  df-ral 3068  df-rex 3069  df-rab 3072  df-v 3424  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-nul 4254  df-if 4457  df-sn 4559  df-pr 4561  df-op 4565  df-uni 4837  df-br 5071  df-opab 5133  df-mpt 5154  df-id 5480  df-xp 5586  df-rel 5587  df-cnv 5588  df-co 5589  df-dm 5590  df-rn 5591  df-iota 6376  df-fun 6420  df-fn 6421  df-f 6422  df-fv 6426
This theorem is referenced by:  ffvresb  6980  dffi3  9120  infxpenlem  9700  alephsing  9963  seqexw  13665  srgfcl  19666  mplind  21188  1stckgenlem  22612  psmetxrge0  23374  plyreres  25348  aannenlem1  25393  subuhgr  27556  subupgr  27557  subumgr  27558  subusgr  27559  elrspunidl  31508  rmulccn  31780  esumfsup  31938  sxbrsigalem3  32139  sitgf  32214  ctbssinf  35504  dihf11lem  39207  hdmaprnN  39805  hgmaprnN  39842  ntrrn  41621  mnurndlem1  41788  volicoff  43426  dirkercncflem2  43535  fourierdlem15  43553  fourierdlem42  43580
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