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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 7117 | . 2 ⊢ (𝐹:𝐴⟶𝐵 ↔ (𝐹 Fn 𝐴 ∧ ∀𝑥 ∈ 𝐴 (𝐹‘𝑥) ∈ 𝐵)) | |
| 2 | frn 6715 | . 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 2145 ∀wral 3077 ⊆ wss 3899 ran crn 5652 Fn wfn 6532 ⟶wf 6533 ‘cfv 6537 |
| 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 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-sep 5249 ax-nul 5260 ax-pr 5391 |
| 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 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3078 df-rex 3088 df-rab 3414 df-v 3453 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-opab 5168 df-mpt 5187 df-id 5546 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-fv 6545 |
| This theorem is used by: ffvresb 7124 dffi3 9416 infxpenlem 10085 alephsing 10347 seqexw 14153 sgnrn 15244 mgmn0plusgf 18820 srgfcl 20415 mplind 22372 1stckgenlem 23865 psmetxrge0 24625 plyreres 26597 aannenlem1 26648 bdayn0sf1o 28749 dfnns2 28751 subuhgr 29860 subupgr 29861 subumgr 29862 subusgr 29863 elrspunidl 33971 rmulccn 34553 esumfsup 34695 sxbrsigalem3 34897 sitgf 34972 ctbssinf 38309 dihf11lem 42303 hdmaprnN 42901 hgmaprnN 42938 ofoafg 44340 naddcnff 44348 ntrrn 45107 mnurndlem1 45250 volicoff 46974 dirkercncflem2 47083 fourierdlem15 47101 fourierdlem42 47128 tmachlem-extpcover 47924 grimuhgr 48954 slotresfo 49976 |
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