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| Mirrors > Home > MPE Home > Th. List > sslin | Structured version Visualization version GIF version | ||
| Description: Add left intersection to subclass relation. (Contributed by NM, 19-Oct-1999.) |
| Ref | Expression |
|---|---|
| sslin | ⊢ (𝐴 ⊆ 𝐵 → (𝐶 ∩ 𝐴) ⊆ (𝐶 ∩ 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssrin 4195 | . 2 ⊢ (𝐴 ⊆ 𝐵 → (𝐴 ∩ 𝐶) ⊆ (𝐵 ∩ 𝐶)) | |
| 2 | incom 4163 | . 2 ⊢ (𝐶 ∩ 𝐴) = (𝐴 ∩ 𝐶) | |
| 3 | incom 4163 | . 2 ⊢ (𝐶 ∩ 𝐵) = (𝐵 ∩ 𝐶) | |
| 4 | 1, 2, 3 | 3sstr4g 3991 | 1 ⊢ (𝐴 ⊆ 𝐵 → (𝐶 ∩ 𝐴) ⊆ (𝐶 ∩ 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∩ cin 3905 ⊆ wss 3906 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-ext 2735 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-tru 1573 df-ex 1810 df-sb 2097 df-clab 2742 df-cleq 2755 df-clel 2838 df-rab 3417 df-v 3457 df-in 3913 df-ss 3923 |
| This theorem is referenced by: ss2in 4198 inxpssres 5680 ssres2 6005 predrelss 6340 sbthlem7 9082 kmlem5 10139 canthnum 10635 ioodisj 13510 hashun3 14422 dprdres 20101 dprd2da 20115 dmdprdsplit2lem 20118 srhmsubc 20766 rhmsubclem3 20773 fldc 20868 fldhmsubc 20869 cnprest 23427 isnrm3 23497 regsep2 23514 llycmpkgen2 23688 kqdisj 23870 regr1lem 23877 fclsbas 24159 fclscf 24163 flimfnfcls 24166 isfcf 24172 metdstri 24990 nulmbl2 25676 uniioombllem4 25726 volsup2 25745 volcn 25746 itg1climres 25854 limcresi 26025 limciun 26034 rlimcnp2 27112 rplogsum 27672 chssoc 31829 cmbr4i 31934 5oai 31994 3oalem6 32000 mdslmd4i 32666 atcvat4i 32730 imadifxp 32927 swrdrndisj 33258 1arithufdlem4 33818 crefss 34220 pnfneige0 34322 cldbnd 36818 neibastop1 36851 neibastop2 36853 onint1 36941 oninhaus 36942 bj-idres 37785 cntotbnd 38428 polcon3N 40672 osumcllem4N 40714 lcfrlem2 42298 mapfzcons1 43431 coeq0i 43467 eldioph4b 43521 icccncfext 46584 rhmsubcALTVlem4 49032 srhmsubcALTV 49073 fldcALTV 49080 fldhmsubcALTV 49081 ssdisjdr 49570 sepnsepolem2 49684 |
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