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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 4160 | . 2 ⊢ (𝐴 ⊆ 𝐵 → (𝐴 ∩ 𝐶) ⊆ (𝐵 ∩ 𝐶)) | |
2 | incom 4128 | . 2 ⊢ (𝐶 ∩ 𝐴) = (𝐴 ∩ 𝐶) | |
3 | incom 4128 | . 2 ⊢ (𝐶 ∩ 𝐵) = (𝐵 ∩ 𝐶) | |
4 | 1, 2, 3 | 3sstr4g 3960 | 1 ⊢ (𝐴 ⊆ 𝐵 → (𝐶 ∩ 𝐴) ⊆ (𝐶 ∩ 𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∩ cin 3880 ⊆ wss 3881 |
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 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-ext 2770 |
This theorem depends on definitions: df-bi 210 df-an 400 df-tru 1541 df-ex 1782 df-sb 2070 df-clab 2777 df-cleq 2791 df-clel 2870 df-rab 3115 df-v 3443 df-in 3888 df-ss 3898 |
This theorem is referenced by: ss2in 4163 inxpssres 5536 ssres2 5846 sbthlem7 8617 kmlem5 9565 canthnum 10060 ioodisj 12860 hashun3 13741 dprdres 19143 dprd2da 19157 dmdprdsplit2lem 19160 cnprest 21894 isnrm3 21964 regsep2 21981 llycmpkgen2 22155 kqdisj 22337 regr1lem 22344 fclsbas 22626 fclscf 22630 flimfnfcls 22633 isfcf 22639 metdstri 23456 nulmbl2 24140 uniioombllem4 24190 volsup2 24209 volcn 24210 itg1climres 24318 limcresi 24488 limciun 24497 rlimcnp2 25552 rplogsum 26111 chssoc 29279 cmbr4i 29384 5oai 29444 3oalem6 29450 mdslmd4i 30116 atcvat4i 30180 imadifxp 30364 swrdrndisj 30657 crefss 31202 pnfneige0 31304 cldbnd 33787 neibastop1 33820 neibastop2 33822 onint1 33910 oninhaus 33911 bj-idres 34575 cntotbnd 35234 polcon3N 37213 osumcllem4N 37255 lcfrlem2 38839 mapfzcons1 39658 coeq0i 39694 eldioph4b 39752 icccncfext 42529 srhmsubc 44700 fldc 44707 fldhmsubc 44708 rhmsubclem3 44712 srhmsubcALTV 44718 fldcALTV 44725 fldhmsubcALTV 44726 rhmsubcALTVlem4 44731 |
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