Theorem fnfvrnss 7096

Description: An upper bound for range determined by function values. (Contributed by NM, 8-Oct-2004.)

Assertion

Ref	Expression
fnfvrnss	⊢ ((𝐹 Fn 𝐴 ∧ ∀𝑥 ∈ 𝐴 (𝐹‘𝑥) ∈ 𝐵) → ran 𝐹 ⊆ 𝐵)

Distinct variable groups:   𝑥,𝐴   𝑥,𝐵   𝑥,𝐹

Proof of Theorem fnfvrnss

Step	Hyp	Ref	Expression
1		ffnfv 7094	. 2 ⊢ (𝐹:𝐴⟶𝐵 ↔ (𝐹 Fn 𝐴 ∧ ∀𝑥 ∈ 𝐴 (𝐹‘𝑥) ∈ 𝐵))
2		frn 6698	. 2 ⊢ (𝐹:𝐴⟶𝐵 → ran 𝐹 ⊆ 𝐵)
3	1, 2	sylbir 235	1 ⊢ ((𝐹 Fn 𝐴 ∧ ∀𝑥 ∈ 𝐴 (𝐹‘𝑥) ∈ 𝐵) → ran 𝐹 ⊆ 𝐵)

Syntax hints:   → wi 4   ∧ wa 395   ∈ wcel 2109  ∀wral 3045   ⊆ wss 3917  ran crn 5642   Fn wfn 6509  ⟶wf 6510  ‘cfv 6514

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 2702  ax-sep 5254  ax-nul 5264  ax-pr 5390

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 2534  df-eu 2563  df-clab 2709  df-cleq 2722  df-clel 2804  df-nfc 2879  df-ne 2927  df-ral 3046  df-rex 3055  df-rab 3409  df-v 3452  df-dif 3920  df-un 3922  df-ss 3934  df-nul 4300  df-if 4492  df-sn 4593  df-pr 4595  df-op 4599  df-uni 4875  df-br 5111  df-opab 5173  df-mpt 5192  df-id 5536  df-xp 5647  df-rel 5648  df-cnv 5649  df-co 5650  df-dm 5651  df-rn 5652  df-iota 6467  df-fun 6516  df-fn 6517  df-f 6518  df-fv 6522

This theorem is referenced by:  ffvresb  7100  dffi3  9389  infxpenlem  9973  alephsing  10236  seqexw  13989  srgfcl  20112  mplind  21984  1stckgenlem  23447  psmetxrge0  24208  plyreres  26197  aannenlem1  26243  bdayn0sf1o  28266  dfnns2  28268  subuhgr  29220  subupgr  29221  subumgr  29222  subusgr  29223  elrspunidl  33406  rmulccn  33925  esumfsup  34067  sxbrsigalem3  34270  sitgf  34345  ctbssinf  37401  dihf11lem  41267  hdmaprnN  41865  hgmaprnN  41902  ofoafg  43350  naddcnff  43358  ntrrn  44118  mnurndlem1  44277  volicoff  46000  dirkercncflem2  46109  fourierdlem15  46127  fourierdlem42  46154  grimuhgr  47891  slotresfo  48891