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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 4196 | . 2 ⊢ (𝐴 ⊆ 𝐵 → (𝐴 ∩ 𝐶) ⊆ (𝐵 ∩ 𝐶)) | |
| 2 | incom 4164 | . 2 ⊢ (𝐶 ∩ 𝐴) = (𝐴 ∩ 𝐶) | |
| 3 | incom 4164 | . 2 ⊢ (𝐶 ∩ 𝐵) = (𝐵 ∩ 𝐶) | |
| 4 | 1, 2, 3 | 3sstr4g 3992 | 1 ⊢ (𝐴 ⊆ 𝐵 → (𝐶 ∩ 𝐴) ⊆ (𝐶 ∩ 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∩ cin 3906 ⊆ wss 3907 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-ext 2737 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-tru 1566 df-ex 1803 df-sb 2094 df-clab 2744 df-cleq 2757 df-clel 2840 df-rab 3418 df-v 3459 df-in 3914 df-ss 3924 |
| This theorem is referenced by: ss2in 4199 inxpssres 5669 ssres2 5994 predrelss 6328 sbthlem7 9069 kmlem5 10126 canthnum 10622 ioodisj 13500 hashun3 14411 dprdres 20091 dprd2da 20105 dmdprdsplit2lem 20108 srhmsubc 20756 rhmsubclem3 20763 fldc 20856 fldhmsubc 20857 cnprest 23407 isnrm3 23477 regsep2 23494 llycmpkgen2 23668 kqdisj 23850 regr1lem 23857 fclsbas 24139 fclscf 24143 flimfnfcls 24146 isfcf 24152 metdstri 24970 nulmbl2 25656 uniioombllem4 25706 volsup2 25725 volcn 25726 itg1climres 25834 limcresi 26005 limciun 26014 rlimcnp2 27089 rplogsum 27649 chssoc 31757 cmbr4i 31862 5oai 31922 3oalem6 31928 mdslmd4i 32594 atcvat4i 32658 imadifxp 32856 swrdrndisj 33190 1arithufdlem4 33754 crefss 34156 pnfneige0 34258 cldbnd 36699 neibastop1 36732 neibastop2 36734 onint1 36822 oninhaus 36823 bj-idres 37664 cntotbnd 38307 polcon3N 40553 osumcllem4N 40595 lcfrlem2 42179 mapfzcons1 43310 coeq0i 43346 eldioph4b 43400 icccncfext 46459 rhmsubcALTVlem4 48904 srhmsubcALTV 48945 fldcALTV 48952 fldhmsubcALTV 48953 ssdisjdr 49438 sepnsepolem2 49552 |
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