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Mirrors > Home > MPE Home > Th. List > fssres | Structured version Visualization version GIF version |
Description: Restriction of a function with a subclass of its domain. (Contributed by NM, 23-Sep-2004.) |
Ref | Expression |
---|---|
fssres | ⊢ ((𝐹:𝐴⟶𝐵 ∧ 𝐶 ⊆ 𝐴) → (𝐹 ↾ 𝐶):𝐶⟶𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-f 6361 | . . 3 ⊢ (𝐹:𝐴⟶𝐵 ↔ (𝐹 Fn 𝐴 ∧ ran 𝐹 ⊆ 𝐵)) | |
2 | fnssres 6472 | . . . . 5 ⊢ ((𝐹 Fn 𝐴 ∧ 𝐶 ⊆ 𝐴) → (𝐹 ↾ 𝐶) Fn 𝐶) | |
3 | resss 5880 | . . . . . . 7 ⊢ (𝐹 ↾ 𝐶) ⊆ 𝐹 | |
4 | 3 | rnssi 5812 | . . . . . 6 ⊢ ran (𝐹 ↾ 𝐶) ⊆ ran 𝐹 |
5 | sstr 3977 | . . . . . 6 ⊢ ((ran (𝐹 ↾ 𝐶) ⊆ ran 𝐹 ∧ ran 𝐹 ⊆ 𝐵) → ran (𝐹 ↾ 𝐶) ⊆ 𝐵) | |
6 | 4, 5 | mpan 688 | . . . . 5 ⊢ (ran 𝐹 ⊆ 𝐵 → ran (𝐹 ↾ 𝐶) ⊆ 𝐵) |
7 | 2, 6 | anim12i 614 | . . . 4 ⊢ (((𝐹 Fn 𝐴 ∧ 𝐶 ⊆ 𝐴) ∧ ran 𝐹 ⊆ 𝐵) → ((𝐹 ↾ 𝐶) Fn 𝐶 ∧ ran (𝐹 ↾ 𝐶) ⊆ 𝐵)) |
8 | 7 | an32s 650 | . . 3 ⊢ (((𝐹 Fn 𝐴 ∧ ran 𝐹 ⊆ 𝐵) ∧ 𝐶 ⊆ 𝐴) → ((𝐹 ↾ 𝐶) Fn 𝐶 ∧ ran (𝐹 ↾ 𝐶) ⊆ 𝐵)) |
9 | 1, 8 | sylanb 583 | . 2 ⊢ ((𝐹:𝐴⟶𝐵 ∧ 𝐶 ⊆ 𝐴) → ((𝐹 ↾ 𝐶) Fn 𝐶 ∧ ran (𝐹 ↾ 𝐶) ⊆ 𝐵)) |
10 | df-f 6361 | . 2 ⊢ ((𝐹 ↾ 𝐶):𝐶⟶𝐵 ↔ ((𝐹 ↾ 𝐶) Fn 𝐶 ∧ ran (𝐹 ↾ 𝐶) ⊆ 𝐵)) | |
11 | 9, 10 | sylibr 236 | 1 ⊢ ((𝐹:𝐴⟶𝐵 ∧ 𝐶 ⊆ 𝐴) → (𝐹 ↾ 𝐶):𝐶⟶𝐵) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 398 ⊆ wss 3938 ran crn 5558 ↾ cres 5559 Fn wfn 6352 ⟶wf 6353 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 ax-sep 5205 ax-nul 5212 ax-pr 5332 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ral 3145 df-rex 3146 df-rab 3149 df-v 3498 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-nul 4294 df-if 4470 df-sn 4570 df-pr 4572 df-op 4576 df-br 5069 df-opab 5131 df-xp 5563 df-rel 5564 df-cnv 5565 df-co 5566 df-dm 5567 df-rn 5568 df-res 5569 df-fun 6359 df-fn 6360 df-f 6361 |
This theorem is referenced by: fssresd 6547 fssres2 6548 fresin 6549 fresaun 6551 f1ssres 6584 f2ndf 7818 elmapssres 8433 pmresg 8436 ralxpmap 8462 mapunen 8688 fofinf1o 8801 fseqenlem1 9452 inar1 10199 gruima 10226 addnqf 10372 mulnqf 10373 fseq1p1m1 12984 injresinj 13161 seqf1olem2 13413 wrdred1 13914 rlimres 14917 lo1res 14918 vdwnnlem1 16333 fsets 16518 resmhm 17987 resghm 18376 gsumzres 19031 gsumzadd 19044 gsum2dlem2 19093 dpjidcl 19182 ablfac1eu 19197 abvres 19612 znf1o 20700 islindf4 20984 kgencn 22166 ptrescn 22249 hmeores 22381 tsmsres 22754 tsmsmhm 22756 tsmsadd 22757 xrge0gsumle 23443 xrge0tsms 23444 ovolicc2lem4 24123 limcdif 24476 limcflf 24481 limcmo 24482 dvres 24511 dvres3a 24514 aannenlem1 24919 logcn 25232 dvlog 25236 dvlog2 25238 logtayl 25245 dvatan 25515 atancn 25516 efrlim 25549 amgm 25570 dchrelbas2 25815 redwlklem 27455 pthdivtx 27512 hhssabloilem 29040 hhssnv 29043 wrdres 30615 xrge0tsmsd 30694 cntmeas 31487 eulerpartlemt 31631 eulerpartlemmf 31635 eulerpartlemgvv 31636 subiwrd 31645 sseqp1 31655 poimirlem4 34898 mbfresfi 34940 mbfposadd 34941 itg2gt0cn 34949 sdclem2 35019 mzpcompact2lem 39355 eldiophb 39361 eldioph2 39366 cncfiooicclem1 42183 fouriersw 42523 sge0tsms 42669 psmeasure 42760 sssmf 43022 resmgmhm 44072 lindslinindimp2lem2 44521 |
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