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| Mirrors > Home > MPE Home > Th. List > fnfvrnss | Structured version Visualization version GIF version | ||
| Description: An upper bound for range determined by function values. (Contributed by NM, 8-Oct-2004.) |
| Ref | Expression |
|---|---|
| fnfvrnss | ⊢ ((𝐹 Fn 𝐴 ∧ ∀𝑥 ∈ 𝐴 (𝐹‘𝑥) ∈ 𝐵) → ran 𝐹 ⊆ 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ffnfv 7151 | . 2 ⊢ (𝐹:𝐴⟶𝐵 ↔ (𝐹 Fn 𝐴 ∧ ∀𝑥 ∈ 𝐴 (𝐹‘𝑥) ∈ 𝐵)) | |
| 2 | frn 6747 | . 2 ⊢ (𝐹:𝐴⟶𝐵 → ran 𝐹 ⊆ 𝐵) | |
| 3 | 1, 2 | sylbir 238 | 1 ⊢ ((𝐹 Fn 𝐴 ∧ ∀𝑥 ∈ 𝐴 (𝐹‘𝑥) ∈ 𝐵) → ran 𝐹 ⊆ 𝐵) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∈ wcel 2147 ∀wral 3080 ⊆ wss 3900 ran crn 5659 Fn wfn 6561 ⟶wf 6562 ‘cfv 6566 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-sep 5255 ax-nul 5266 ax-pr 5398 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4841 df-uni 4873 df-br 5109 df-opab 5174 df-mpt 5193 df-id 5553 df-xp 5664 df-rel 5665 df-cnv 5666 df-co 5667 df-dm 5668 df-rn 5669 df-iota 6520 df-fun 6568 df-fn 6569 df-f 6570 df-fv 6574 |
| This theorem is used by: ffvresb 7158 dffi3 9460 infxpenlem 10131 alephsing 10393 seqexw 14200 sgnrn 15294 mgmn0plusgf 18877 srgfcl 20473 mplind 22434 1stckgenlem 23927 psmetxrge0 24687 plyreres 26659 aannenlem1 26712 bdayn0sf1o 28813 dfnns2 28815 subuhgr 29924 subupgr 29925 subumgr 29926 subusgr 29927 elrspunidl 34082 rmulccn 34671 esumfsup 34813 sxbrsigalem3 35015 sitgf 35090 ctbssinf 38597 dihf11lem 42589 hdmaprnN 43187 hgmaprnN 43224 ofoafg 44617 naddcnff 44625 ntrrn 45383 mnurndlem1 45526 volicoff 47278 dirkercncflem2 47387 fourierdlem15 47405 fourierdlem42 47432 tmachlem-extpcover 48228 grimuhgr 49258 slotresfo 50344 |
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