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Mirrors > Home > MPE Home > Th. List > ssrin | Structured version Visualization version GIF version |
Description: Add right intersection to subclass relation. (Contributed by NM, 16-Aug-1994.) (Proof shortened by Andrew Salmon, 26-Jun-2011.) |
Ref | Expression |
---|---|
ssrin | ⊢ (𝐴 ⊆ 𝐵 → (𝐴 ∩ 𝐶) ⊆ (𝐵 ∩ 𝐶)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ssel 3562 | . . . 4 ⊢ (𝐴 ⊆ 𝐵 → (𝑥 ∈ 𝐴 → 𝑥 ∈ 𝐵)) | |
2 | 1 | anim1d 586 | . . 3 ⊢ (𝐴 ⊆ 𝐵 → ((𝑥 ∈ 𝐴 ∧ 𝑥 ∈ 𝐶) → (𝑥 ∈ 𝐵 ∧ 𝑥 ∈ 𝐶))) |
3 | elin 3758 | . . 3 ⊢ (𝑥 ∈ (𝐴 ∩ 𝐶) ↔ (𝑥 ∈ 𝐴 ∧ 𝑥 ∈ 𝐶)) | |
4 | elin 3758 | . . 3 ⊢ (𝑥 ∈ (𝐵 ∩ 𝐶) ↔ (𝑥 ∈ 𝐵 ∧ 𝑥 ∈ 𝐶)) | |
5 | 2, 3, 4 | 3imtr4g 284 | . 2 ⊢ (𝐴 ⊆ 𝐵 → (𝑥 ∈ (𝐴 ∩ 𝐶) → 𝑥 ∈ (𝐵 ∩ 𝐶))) |
6 | 5 | ssrdv 3574 | 1 ⊢ (𝐴 ⊆ 𝐵 → (𝐴 ∩ 𝐶) ⊆ (𝐵 ∩ 𝐶)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 383 ∈ wcel 1977 ∩ cin 3539 ⊆ wss 3540 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-v 3175 df-in 3547 df-ss 3554 |
This theorem is referenced by: sslin 3801 ss2in 3802 ssdisj 3978 ssdisjOLD 3979 ssdifin0 4002 ssres 5344 predpredss 5603 sbthlem7 7961 onsdominel 7994 phplem2 8025 infdifsn 8437 fictb 8950 fin23lem23 9031 ttukeylem2 9215 limsupgord 14051 xpsc1 16044 isacs1i 16141 rescabs 16316 lsmdisj 17917 dmdprdsplit2lem 18267 pjfval 19869 pjpm 19871 obselocv 19891 tgss 20583 neindisj2 20737 restbas 20772 neitr 20794 restcls 20795 restntr 20796 nrmsep 20971 1stcrest 21066 cldllycmp 21108 kgencn3 21171 trfbas2 21457 fclsneii 21631 fclsrest 21638 fcfnei 21649 cnextcn 21681 tsmsres 21757 trust 21843 restutopopn 21852 trcfilu 21908 metrest 22139 reperflem 22429 metdseq0 22465 iundisj2 23124 uniioombllem3 23159 ellimc3 23449 limcflf 23451 lhop1lem 23580 ppisval 24630 ppisval2 24631 ppinprm 24678 chtnprm 24680 chtwordi 24682 ppiwordi 24688 chpub 24745 chebbnd1lem1 24958 chtppilimlem1 24962 orthin 27689 3oalem6 27910 mdbr2 28539 mdslle1i 28560 mdslle2i 28561 mdslj1i 28562 mdslj2i 28563 mdsl2i 28565 mdslmd1lem1 28568 mdslmd1lem2 28569 mdslmd3i 28575 mdexchi 28578 sumdmdlem 28661 iundisj2f 28785 iundisj2fi 28943 esumrnmpt2 29457 eulerpartlemn 29770 bnj1177 30328 poimirlem3 32582 poimirlem29 32608 ismblfin 32620 sstotbnd2 32743 lcvexchlem5 33343 pnonsingN 34237 dochnoncon 35698 eldioph2lem2 36342 acsfn1p 36788 nnuzdisj 38512 sumnnodd 38697 sge0less 39285 rhmsscrnghm 41818 rngcresringcat 41822 |
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