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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 7120 | . 2 ⊢ (𝐹:𝐴⟶𝐵 ↔ (𝐹 Fn 𝐴 ∧ ∀𝑥 ∈ 𝐴 (𝐹‘𝑥) ∈ 𝐵)) | |
| 2 | frn 6718 | . 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 2144 ∀wral 3076 ⊆ wss 3895 ran crn 5651 Fn wfn 6534 ⟶wf 6535 ‘cfv 6539 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pr 5390 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-ss 3896 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5545 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-iota 6494 df-fun 6541 df-fn 6542 df-f 6543 df-fv 6547 |
| This theorem is used by: ffvresb 7127 dffi3 9427 infxpenlem 10096 alephsing 10358 seqexw 14164 sgnrn 15257 mgmn0plusgf 18833 srgfcl 20428 mplind 22385 1stckgenlem 23878 psmetxrge0 24638 plyreres 26610 aannenlem1 26661 bdayn0sf1o 28762 dfnns2 28764 subuhgr 29873 subupgr 29874 subumgr 29875 subusgr 29876 elrspunidl 34025 rmulccn 34607 esumfsup 34749 sxbrsigalem3 34951 sitgf 35026 ctbssinf 38423 dihf11lem 42417 hdmaprnN 43015 hgmaprnN 43052 ofoafg 44450 naddcnff 44458 ntrrn 45216 mnurndlem1 45359 volicoff 47099 dirkercncflem2 47208 fourierdlem15 47226 fourierdlem42 47253 tmachlem-extpcover 48049 grimuhgr 49079 slotresfo 50107 |
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