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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 4194 | . 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 3987 | 1 ⊢ (𝐴 ⊆ 𝐵 → (𝐶 ∩ 𝐴) ⊆ (𝐶 ∩ 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∩ cin 3900 ⊆ wss 3901 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-ext 2708 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1544 df-ex 1781 df-sb 2068 df-clab 2715 df-cleq 2728 df-clel 2811 df-rab 3400 df-v 3442 df-in 3908 df-ss 3918 |
| This theorem is referenced by: ss2in 4197 inxpssres 5641 ssres2 5963 predrelss 6295 sbthlem7 9021 kmlem5 10065 canthnum 10560 ioodisj 13398 hashun3 14307 dprdres 19959 dprd2da 19973 dmdprdsplit2lem 19976 srhmsubc 20613 rhmsubclem3 20620 fldc 20717 fldhmsubc 20718 cnprest 23233 isnrm3 23303 regsep2 23320 llycmpkgen2 23494 kqdisj 23676 regr1lem 23683 fclsbas 23965 fclscf 23969 flimfnfcls 23972 isfcf 23978 metdstri 24796 nulmbl2 25493 uniioombllem4 25543 volsup2 25562 volcn 25563 itg1climres 25671 limcresi 25842 limciun 25851 rlimcnp2 26932 rplogsum 27494 chssoc 31571 cmbr4i 31676 5oai 31736 3oalem6 31742 mdslmd4i 32408 atcvat4i 32472 imadifxp 32676 swrdrndisj 33039 1arithufdlem4 33628 crefss 34006 pnfneige0 34108 cldbnd 36520 neibastop1 36553 neibastop2 36555 onint1 36643 oninhaus 36644 bj-idres 37361 cntotbnd 37993 polcon3N 40173 osumcllem4N 40215 lcfrlem2 41799 mapfzcons1 42955 coeq0i 42991 eldioph4b 43049 icccncfext 46127 rhmsubcALTVlem4 48526 srhmsubcALTV 48567 fldcALTV 48574 fldhmsubcALTV 48575 ssdisjdr 49050 sepnsepolem2 49164 |
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