| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 4177 | . 2 ⊢ (𝐴 ⊆ 𝐵 → (𝐴 ∩ 𝐶) ⊆ (𝐵 ∩ 𝐶)) | |
| 2 | incom 4145 | . 2 ⊢ (𝐶 ∩ 𝐴) = (𝐴 ∩ 𝐶) | |
| 3 | incom 4145 | . 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 3889 ⊆ wss 3890 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-ext 2712 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-tru 1550 df-ex 1787 df-sb 2074 df-clab 2719 df-cleq 2732 df-clel 2815 df-rab 3393 df-v 3434 df-in 3897 df-ss 3907 |
| This theorem is referenced by: ss2in 4180 inxpssres 5642 ssres2 5963 predrelss 6295 sbthlem7 9028 kmlem5 10075 canthnum 10570 ioodisj 13433 hashun3 14344 dprdres 20003 dprd2da 20017 dmdprdsplit2lem 20020 srhmsubc 20659 rhmsubclem3 20666 fldc 20763 fldhmsubc 20764 cnprest 23279 isnrm3 23349 regsep2 23366 llycmpkgen2 23540 kqdisj 23722 regr1lem 23729 fclsbas 24011 fclscf 24015 flimfnfcls 24018 isfcf 24024 metdstri 24842 nulmbl2 25528 uniioombllem4 25578 volsup2 25597 volcn 25598 itg1climres 25706 limcresi 25877 limciun 25886 rlimcnp2 26955 rplogsum 27515 chssoc 31592 cmbr4i 31697 5oai 31757 3oalem6 31763 mdslmd4i 32429 atcvat4i 32493 imadifxp 32697 swrdrndisj 33043 1arithufdlem4 33637 crefss 34040 pnfneige0 34142 cldbnd 36561 neibastop1 36594 neibastop2 36596 onint1 36684 oninhaus 36685 bj-idres 37527 cntotbnd 38170 polcon3N 40416 osumcllem4N 40458 lcfrlem2 42042 mapfzcons1 43173 coeq0i 43209 eldioph4b 43263 icccncfext 46337 rhmsubcALTVlem4 48782 srhmsubcALTV 48823 fldcALTV 48830 fldhmsubcALTV 48831 ssdisjdr 49306 sepnsepolem2 49420 |
| Copyright terms: Public domain | W3C validator |