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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 17169 | . 2 ⊢ (Base‘𝑅) ⊆ (𝐴 ∩ 𝐵) |
| 4 | inss2 4191 | . 2 ⊢ (𝐴 ∩ 𝐵) ⊆ 𝐵 | |
| 5 | 3, 4 | sstri 3944 | 1 ⊢ (Base‘𝑅) ⊆ 𝐵 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 ∩ cin 3901 ⊆ wss 3902 ‘cfv 6493 (class class class)co 7361 Basecbs 17141 ↾s cress 17162 |
| 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 2185 ax-ext 2709 ax-sep 5242 ax-nul 5252 ax-pow 5311 ax-pr 5378 ax-un 7683 ax-cnex 11087 ax-1cn 11089 ax-addcl 11091 |
| 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 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3062 df-reu 3352 df-rab 3401 df-v 3443 df-sbc 3742 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4287 df-if 4481 df-pw 4557 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-iun 4949 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6260 df-ord 6321 df-on 6322 df-lim 6323 df-suc 6324 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-ov 7364 df-oprab 7365 df-mpo 7366 df-om 7812 df-2nd 7937 df-frecs 8226 df-wrecs 8257 df-recs 8306 df-rdg 8344 df-nn 12151 df-sets 17096 df-slot 17114 df-ndx 17126 df-base 17142 df-ress 17163 |
| This theorem is referenced by: funcres2c 17832 resscatc 18038 submnd0 18693 resscntz 19267 subcmn 19771 rngqiprng1elbas 21246 rng2idl1cntr 21265 evpmss 21546 phlssphl 21619 frlmplusgval 21724 frlmvscafval 21726 lsslindf 21790 islinds3 21794 resspsrvsca 21937 subrgpsr 21938 ply1bascl 22149 evls1fvcl 22324 ressprdsds 24320 cphsubrglem 25138 cphsscph 25212 ressply1mon1p 33653 unitscyglem5 42532 mplsubrgcl 42879 |
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