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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 4182 | . 2 ⊢ (𝐴 ⊆ 𝐵 → (𝐴 ∩ 𝐶) ⊆ (𝐵 ∩ 𝐶)) | |
| 2 | incom 4149 | . 2 ⊢ (𝐶 ∩ 𝐴) = (𝐴 ∩ 𝐶) | |
| 3 | incom 4149 | . 2 ⊢ (𝐶 ∩ 𝐵) = (𝐵 ∩ 𝐶) | |
| 4 | 1, 2, 3 | 3sstr4g 3975 | 1 ⊢ (𝐴 ⊆ 𝐵 → (𝐶 ∩ 𝐴) ⊆ (𝐶 ∩ 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∩ cin 3888 ⊆ wss 3889 |
| 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 2708 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1545 df-ex 1782 df-sb 2069 df-clab 2715 df-cleq 2728 df-clel 2811 df-rab 3390 df-v 3431 df-in 3896 df-ss 3906 |
| This theorem is referenced by: ss2in 4185 inxpssres 5648 ssres2 5969 predrelss 6301 sbthlem7 9031 kmlem5 10077 canthnum 10572 ioodisj 13435 hashun3 14346 dprdres 20005 dprd2da 20019 dmdprdsplit2lem 20022 srhmsubc 20657 rhmsubclem3 20664 fldc 20761 fldhmsubc 20762 cnprest 23254 isnrm3 23324 regsep2 23341 llycmpkgen2 23515 kqdisj 23697 regr1lem 23704 fclsbas 23986 fclscf 23990 flimfnfcls 23993 isfcf 23999 metdstri 24817 nulmbl2 25503 uniioombllem4 25553 volsup2 25572 volcn 25573 itg1climres 25681 limcresi 25852 limciun 25861 rlimcnp2 26930 rplogsum 27490 chssoc 31567 cmbr4i 31672 5oai 31732 3oalem6 31738 mdslmd4i 32404 atcvat4i 32468 imadifxp 32671 swrdrndisj 33017 1arithufdlem4 33607 crefss 33993 pnfneige0 34095 cldbnd 36508 neibastop1 36541 neibastop2 36543 onint1 36631 oninhaus 36632 bj-idres 37474 cntotbnd 38117 polcon3N 40363 osumcllem4N 40405 lcfrlem2 41989 mapfzcons1 43149 coeq0i 43185 eldioph4b 43239 icccncfext 46315 rhmsubcALTVlem4 48760 srhmsubcALTV 48801 fldcALTV 48808 fldhmsubcALTV 48809 ssdisjdr 49284 sepnsepolem2 49398 |
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