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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 4163 | . 2 ⊢ (𝐶 ∩ 𝐴) = (𝐴 ∩ 𝐶) | |
| 3 | incom 4163 | . 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 3902 ⊆ wss 3903 |
| 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 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1545 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-rab 3402 df-v 3444 df-in 3910 df-ss 3920 |
| This theorem is referenced by: ss2in 4199 inxpssres 5649 ssres2 5971 predrelss 6303 sbthlem7 9033 kmlem5 10077 canthnum 10572 ioodisj 13410 hashun3 14319 dprdres 19971 dprd2da 19985 dmdprdsplit2lem 19988 srhmsubc 20625 rhmsubclem3 20632 fldc 20729 fldhmsubc 20730 cnprest 23245 isnrm3 23315 regsep2 23332 llycmpkgen2 23506 kqdisj 23688 regr1lem 23695 fclsbas 23977 fclscf 23981 flimfnfcls 23984 isfcf 23990 metdstri 24808 nulmbl2 25505 uniioombllem4 25555 volsup2 25574 volcn 25575 itg1climres 25683 limcresi 25854 limciun 25863 rlimcnp2 26944 rplogsum 27506 chssoc 31583 cmbr4i 31688 5oai 31748 3oalem6 31754 mdslmd4i 32420 atcvat4i 32484 imadifxp 32687 swrdrndisj 33049 1arithufdlem4 33639 crefss 34026 pnfneige0 34128 cldbnd 36539 neibastop1 36572 neibastop2 36574 onint1 36662 oninhaus 36663 bj-idres 37409 cntotbnd 38041 polcon3N 40287 osumcllem4N 40329 lcfrlem2 41913 mapfzcons1 43068 coeq0i 43104 eldioph4b 43162 icccncfext 46239 rhmsubcALTVlem4 48638 srhmsubcALTV 48679 fldcALTV 48686 fldhmsubcALTV 48687 ssdisjdr 49162 sepnsepolem2 49276 |
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