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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 3597 | . . . 4 ⊢ (𝐴 ⊆ 𝐵 → (𝑥 ∈ 𝐴 → 𝑥 ∈ 𝐵)) | |
2 | 1 | anim1d 588 | . . 3 ⊢ (𝐴 ⊆ 𝐵 → ((𝑥 ∈ 𝐴 ∧ 𝑥 ∈ 𝐶) → (𝑥 ∈ 𝐵 ∧ 𝑥 ∈ 𝐶))) |
3 | elin 3796 | . . 3 ⊢ (𝑥 ∈ (𝐴 ∩ 𝐶) ↔ (𝑥 ∈ 𝐴 ∧ 𝑥 ∈ 𝐶)) | |
4 | elin 3796 | . . 3 ⊢ (𝑥 ∈ (𝐵 ∩ 𝐶) ↔ (𝑥 ∈ 𝐵 ∧ 𝑥 ∈ 𝐶)) | |
5 | 2, 3, 4 | 3imtr4g 285 | . 2 ⊢ (𝐴 ⊆ 𝐵 → (𝑥 ∈ (𝐴 ∩ 𝐶) → 𝑥 ∈ (𝐵 ∩ 𝐶))) |
6 | 5 | ssrdv 3609 | 1 ⊢ (𝐴 ⊆ 𝐵 → (𝐴 ∩ 𝐶) ⊆ (𝐵 ∩ 𝐶)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 384 ∈ wcel 1990 ∩ cin 3573 ⊆ wss 3574 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-v 3202 df-in 3581 df-ss 3588 |
This theorem is referenced by: sslin 3839 ss2in 3840 ssdisj 4026 ssdisjOLD 4027 ssdifin0 4050 ssres 5424 predpredss 5686 sbthlem7 8076 onsdominel 8109 phplem2 8140 infdifsn 8554 fictb 9067 fin23lem23 9148 ttukeylem2 9332 limsupgord 14203 xpsc1 16221 isacs1i 16318 rescabs 16493 lsmdisj 18094 dmdprdsplit2lem 18444 pjfval 20050 pjpm 20052 obselocv 20072 tgss 20772 neindisj2 20927 restbas 20962 neitr 20984 restcls 20985 restntr 20986 nrmsep 21161 1stcrest 21256 cldllycmp 21298 kgencn3 21361 trfbas2 21647 fclsneii 21821 fclsrest 21828 fcfnei 21839 cnextcn 21871 tsmsres 21947 trust 22033 restutopopn 22042 trcfilu 22098 metrest 22329 reperflem 22621 metdseq0 22657 iundisj2 23317 uniioombllem3 23353 ellimc3 23643 limcflf 23645 lhop1lem 23776 ppisval 24830 ppisval2 24831 ppinprm 24878 chtnprm 24880 chtwordi 24882 ppiwordi 24888 chpub 24945 chebbnd1lem1 25158 chtppilimlem1 25162 orthin 28305 3oalem6 28526 mdbr2 29155 mdslle1i 29176 mdslle2i 29177 mdslj1i 29178 mdslj2i 29179 mdsl2i 29181 mdslmd1lem1 29184 mdslmd1lem2 29185 mdslmd3i 29191 mdexchi 29194 sumdmdlem 29277 iundisj2f 29403 iundisj2fi 29556 esumrnmpt2 30130 eulerpartlemn 30443 bnj1177 31074 poimirlem3 33412 poimirlem29 33438 ismblfin 33450 sstotbnd2 33573 lcvexchlem5 34325 pnonsingN 35219 dochnoncon 36680 eldioph2lem2 37324 acsfn1p 37769 ssrind 39333 nnuzdisj 39571 sumnnodd 39862 limsupres 39937 liminfgord 39986 sge0less 40609 rhmsscrnghm 42026 rngcresringcat 42030 |
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