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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 4193 | . 2 ⊢ (𝐴 ⊆ 𝐵 → (𝐴 ∩ 𝐶) ⊆ (𝐵 ∩ 𝐶)) | |
| 2 | incom 4161 | . 2 ⊢ (𝐶 ∩ 𝐴) = (𝐴 ∩ 𝐶) | |
| 3 | incom 4161 | . 2 ⊢ (𝐶 ∩ 𝐵) = (𝐵 ∩ 𝐶) | |
| 4 | 1, 2, 3 | 3sstr4g 3989 | 1 ⊢ (𝐴 ⊆ 𝐵 → (𝐶 ∩ 𝐴) ⊆ (𝐶 ∩ 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∩ cin 3903 ⊆ wss 3904 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-ext 2733 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-tru 1562 df-ex 1799 df-sb 2090 df-clab 2740 df-cleq 2753 df-clel 2836 df-rab 3414 df-v 3455 df-in 3911 df-ss 3921 |
| This theorem is referenced by: ss2in 4196 inxpssres 5662 ssres2 5988 predrelss 6320 sbthlem7 9061 kmlem5 10108 canthnum 10604 ioodisj 13483 hashun3 14394 dprdres 20053 dprd2da 20067 dmdprdsplit2lem 20070 srhmsubc 20709 rhmsubclem3 20716 fldc 20813 fldhmsubc 20814 cnprest 23329 isnrm3 23399 regsep2 23416 llycmpkgen2 23590 kqdisj 23772 regr1lem 23779 fclsbas 24061 fclscf 24065 flimfnfcls 24068 isfcf 24074 metdstri 24892 nulmbl2 25578 uniioombllem4 25628 volsup2 25647 volcn 25648 itg1climres 25756 limcresi 25927 limciun 25936 rlimcnp2 27008 rplogsum 27568 chssoc 31645 cmbr4i 31750 5oai 31810 3oalem6 31816 mdslmd4i 32482 atcvat4i 32546 imadifxp 32750 swrdrndisj 33096 1arithufdlem4 33704 crefss 34107 pnfneige0 34209 cldbnd 36650 neibastop1 36683 neibastop2 36685 onint1 36773 oninhaus 36774 bj-idres 37616 cntotbnd 38259 polcon3N 40505 osumcllem4N 40547 lcfrlem2 42131 mapfzcons1 43262 coeq0i 43298 eldioph4b 43352 icccncfext 46425 rhmsubcALTVlem4 48870 srhmsubcALTV 48911 fldcALTV 48918 fldhmsubcALTV 48919 ssdisjdr 49394 sepnsepolem2 49508 |
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