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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 4183 | . 2 ⊢ (𝐴 ⊆ 𝐵 → (𝐴 ∩ 𝐶) ⊆ (𝐵 ∩ 𝐶)) | |
| 2 | incom 4150 | . 2 ⊢ (𝐶 ∩ 𝐴) = (𝐴 ∩ 𝐶) | |
| 3 | incom 4150 | . 2 ⊢ (𝐶 ∩ 𝐵) = (𝐵 ∩ 𝐶) | |
| 4 | 1, 2, 3 | 3sstr4g 3976 | 1 ⊢ (𝐴 ⊆ 𝐵 → (𝐶 ∩ 𝐴) ⊆ (𝐶 ∩ 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∩ cin 3889 ⊆ wss 3890 |
| 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-ext 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1545 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-rab 3391 df-v 3432 df-in 3897 df-ss 3907 |
| This theorem is referenced by: ss2in 4186 inxpssres 5641 ssres2 5963 predrelss 6295 sbthlem7 9024 kmlem5 10068 canthnum 10563 ioodisj 13426 hashun3 14337 dprdres 19996 dprd2da 20010 dmdprdsplit2lem 20013 srhmsubc 20648 rhmsubclem3 20655 fldc 20752 fldhmsubc 20753 cnprest 23264 isnrm3 23334 regsep2 23351 llycmpkgen2 23525 kqdisj 23707 regr1lem 23714 fclsbas 23996 fclscf 24000 flimfnfcls 24003 isfcf 24009 metdstri 24827 nulmbl2 25513 uniioombllem4 25563 volsup2 25582 volcn 25583 itg1climres 25691 limcresi 25862 limciun 25871 rlimcnp2 26943 rplogsum 27504 chssoc 31582 cmbr4i 31687 5oai 31747 3oalem6 31753 mdslmd4i 32419 atcvat4i 32483 imadifxp 32686 swrdrndisj 33032 1arithufdlem4 33622 crefss 34009 pnfneige0 34111 cldbnd 36524 neibastop1 36557 neibastop2 36559 onint1 36647 oninhaus 36648 bj-idres 37490 cntotbnd 38131 polcon3N 40377 osumcllem4N 40419 lcfrlem2 42003 mapfzcons1 43163 coeq0i 43199 eldioph4b 43257 icccncfext 46333 rhmsubcALTVlem4 48772 srhmsubcALTV 48813 fldcALTV 48820 fldhmsubcALTV 48821 ssdisjdr 49296 sepnsepolem2 49410 |
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