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Mirrors > Home > MPE Home > Th. List > elinel1 | Structured version Visualization version GIF version |
Description: Membership in an intersection implies membership in the first set. (Contributed by Glauco Siliprandi, 11-Dec-2019.) |
Ref | Expression |
---|---|
elinel1 | ⊢ (𝐴 ∈ (𝐵 ∩ 𝐶) → 𝐴 ∈ 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elin 3758 | . 2 ⊢ (𝐴 ∈ (𝐵 ∩ 𝐶) ↔ (𝐴 ∈ 𝐵 ∧ 𝐴 ∈ 𝐶)) | |
2 | 1 | simplbi 475 | 1 ⊢ (𝐴 ∈ (𝐵 ∩ 𝐶) → 𝐴 ∈ 𝐵) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 1977 ∩ cin 3539 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-v 3175 df-in 3547 |
This theorem is referenced by: elin1d 3764 inss1 3795 predel 5614 prmreclem2 15459 txkgen 21265 ncvsge0 22761 dchrisum0re 25002 xrge0tsmsd 29116 eulerpartgbij 29761 fiinfi 36897 gneispace 37452 elpwinss 38241 restuni3 38333 disjinfi 38375 inmap 38396 iocopn 38593 icoopn 38598 icomnfinre 38626 islpcn 38706 lptre2pt 38707 limcresiooub 38709 limcresioolb 38710 icccncfext 38773 stoweidlem39 38932 stoweidlem50 38943 stoweidlem57 38950 fourierdlem32 39032 fourierdlem33 39033 fourierdlem48 39047 fourierdlem49 39048 fourierdlem71 39070 sge0rnre 39257 sge00 39269 sge0tsms 39273 sge0cl 39274 sge0fsum 39280 sge0sup 39284 sge0less 39285 sge0gerp 39288 sge0resplit 39299 sge0split 39302 sge0iunmptlemre 39308 caragendifcl 39404 hoiqssbllem3 39514 hspmbllem2 39517 pimiooltgt 39598 pimdecfgtioc 39602 pimincfltioc 39603 pimdecfgtioo 39604 pimincfltioo 39605 sssmf 39625 smfaddlem1 39649 smfaddlem2 39650 smfadd 39651 mbfpsssmf 39669 smfmul 39680 smfdiv 39682 fmtno4prm 40025 uhgrspansubgrlem 40514 rngcid 41771 ringcid 41817 rhmsubclem3 41880 rhmsubcALTVlem3 41899 |
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