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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 6358 | . . 3 ⊢ (𝐹:𝐴⟶𝐵 ↔ (𝐹 Fn 𝐴 ∧ ran 𝐹 ⊆ 𝐵)) | |
2 | fnssres 6469 | . . . . 5 ⊢ ((𝐹 Fn 𝐴 ∧ 𝐶 ⊆ 𝐴) → (𝐹 ↾ 𝐶) Fn 𝐶) | |
3 | resss 5877 | . . . . . . 7 ⊢ (𝐹 ↾ 𝐶) ⊆ 𝐹 | |
4 | 3 | rnssi 5809 | . . . . . 6 ⊢ ran (𝐹 ↾ 𝐶) ⊆ ran 𝐹 |
5 | sstr 3974 | . . . . . 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 6358 | . 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 3935 ran crn 5555 ↾ cres 5556 Fn wfn 6349 ⟶wf 6350 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5202 ax-nul 5209 ax-pr 5329 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3496 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-nul 4291 df-if 4467 df-sn 4567 df-pr 4569 df-op 4573 df-br 5066 df-opab 5128 df-xp 5560 df-rel 5561 df-cnv 5562 df-co 5563 df-dm 5564 df-rn 5565 df-res 5566 df-fun 6356 df-fn 6357 df-f 6358 |
This theorem is referenced by: fssresd 6544 fssres2 6545 fresin 6546 fresaun 6548 f1ssres 6581 f2ndf 7815 elmapssres 8430 pmresg 8433 ralxpmap 8459 mapunen 8685 fofinf1o 8798 fseqenlem1 9449 inar1 10196 gruima 10223 addnqf 10369 mulnqf 10370 fseq1p1m1 12980 injresinj 13157 seqf1olem2 13409 wrdred1 13911 rlimres 14914 lo1res 14915 vdwnnlem1 16330 fsets 16515 resmhm 17984 resghm 18373 gsumzres 19028 gsumzadd 19041 gsum2dlem2 19090 dpjidcl 19179 ablfac1eu 19194 abvres 19609 znf1o 20697 islindf4 20981 kgencn 22163 ptrescn 22246 hmeores 22378 tsmsres 22751 tsmsmhm 22753 tsmsadd 22754 xrge0gsumle 23440 xrge0tsms 23441 ovolicc2lem4 24120 limcdif 24473 limcflf 24478 limcmo 24479 dvres 24508 dvres3a 24511 aannenlem1 24916 logcn 25229 dvlog 25233 dvlog2 25235 logtayl 25242 dvatan 25512 atancn 25513 efrlim 25546 amgm 25567 dchrelbas2 25812 redwlklem 27452 pthdivtx 27509 hhssabloilem 29037 hhssnv 29040 wrdres 30613 xrge0tsmsd 30692 cntmeas 31485 eulerpartlemt 31629 eulerpartlemmf 31633 eulerpartlemgvv 31634 subiwrd 31643 sseqp1 31653 poimirlem4 34895 mbfresfi 34937 mbfposadd 34938 itg2gt0cn 34946 sdclem2 35016 mzpcompact2lem 39346 eldiophb 39352 eldioph2 39357 cncfiooicclem1 42174 fouriersw 42515 sge0tsms 42661 psmeasure 42752 sssmf 43014 resmgmhm 44064 lindslinindimp2lem2 44513 |
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