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| Mirrors > Home > MPE Home > Th. List > ressbasss | Structured version Visualization version GIF version | ||
| Description: The base set of a restriction is a subset of the base set of the original structure. (Contributed by Stefan O'Rear, 27-Nov-2014.) (Revised by Mario Carneiro, 30-Apr-2015.) (Proof shortened by SN, 25-Feb-2025.) |
| Ref | Expression |
|---|---|
| ressbas.r | ⊢ 𝑅 = (𝑊 ↾s 𝐴) |
| ressbas.b | ⊢ 𝐵 = (Base‘𝑊) |
| Ref | Expression |
|---|---|
| ressbasss | ⊢ (Base‘𝑅) ⊆ 𝐵 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ressbas.r | . . 3 ⊢ 𝑅 = (𝑊 ↾s 𝐴) | |
| 2 | ressbas.b | . . 3 ⊢ 𝐵 = (Base‘𝑊) | |
| 3 | 1, 2 | ressbasssg 17196 | . 2 ⊢ (Base‘𝑅) ⊆ (𝐴 ∩ 𝐵) |
| 4 | inss2 4168 | . 2 ⊢ (𝐴 ∩ 𝐵) ⊆ 𝐵 | |
| 5 | 3, 4 | sstri 3926 | 1 ⊢ (Base‘𝑅) ⊆ 𝐵 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 ∩ cin 3884 ⊆ wss 3885 ‘cfv 6487 (class class class)co 7356 Basecbs 17168 ↾s cress 17189 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2184 ax-ext 2707 ax-sep 5220 ax-nul 5230 ax-pow 5296 ax-pr 5364 ax-un 7678 ax-cnex 11083 ax-1cn 11085 ax-addcl 11087 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2538 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2810 df-nfc 2884 df-ne 2931 df-ral 3050 df-rex 3060 df-reu 3341 df-rab 3388 df-v 3429 df-sbc 3726 df-csb 3834 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 df-pss 3905 df-nul 4264 df-if 4457 df-pw 4533 df-sn 4558 df-pr 4560 df-op 4564 df-uni 4841 df-iun 4925 df-br 5075 df-opab 5137 df-mpt 5156 df-tr 5182 df-id 5515 df-eprel 5520 df-po 5528 df-so 5529 df-fr 5573 df-we 5575 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-ima 5633 df-pred 6254 df-ord 6315 df-on 6316 df-lim 6317 df-suc 6318 df-iota 6443 df-fun 6489 df-fn 6490 df-f 6491 df-f1 6492 df-fo 6493 df-f1o 6494 df-fv 6495 df-ov 7359 df-oprab 7360 df-mpo 7361 df-om 7807 df-2nd 7932 df-frecs 8220 df-wrecs 8251 df-recs 8300 df-rdg 8338 df-nn 12164 df-sets 17123 df-slot 17141 df-ndx 17153 df-base 17169 df-ress 17190 |
| This theorem is referenced by: funcres2c 17859 resscatc 18065 submnd0 18720 resscntz 19297 subcmn 19801 rngqiprng1elbas 21273 rng2idl1cntr 21292 evpmss 21555 phlssphl 21628 frlmplusgval 21733 frlmvscafval 21735 lsslindf 21799 islinds3 21803 resspsrvsca 21944 subrgpsr 21945 ply1bascl 22155 evls1fvcl 22328 ressprdsds 24324 cphsubrglem 25132 cphsscph 25206 ressply1mon1p 33616 unitscyglem5 42626 mplsubrgcl 42979 |
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