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| Mirrors > Home > MPE Home > Th. List > elin2 | Structured version Visualization version GIF version | ||
| Description: Membership in a class defined as an intersection. (Contributed by Stefan O'Rear, 29-Mar-2015.) |
| Ref | Expression |
|---|---|
| elin2.x | ⊢ 𝑋 = (𝐵 ∩ 𝐶) |
| Ref | Expression |
|---|---|
| elin2 | ⊢ (𝐴 ∈ 𝑋 ↔ (𝐴 ∈ 𝐵 ∧ 𝐴 ∈ 𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elin2.x | . . 3 ⊢ 𝑋 = (𝐵 ∩ 𝐶) | |
| 2 | 1 | eleq2i 2826 | . 2 ⊢ (𝐴 ∈ 𝑋 ↔ 𝐴 ∈ (𝐵 ∩ 𝐶)) |
| 3 | elin 3915 | . 2 ⊢ (𝐴 ∈ (𝐵 ∩ 𝐶) ↔ (𝐴 ∈ 𝐵 ∧ 𝐴 ∈ 𝐶)) | |
| 4 | 2, 3 | bitri 275 | 1 ⊢ (𝐴 ∈ 𝑋 ↔ (𝐴 ∈ 𝐵 ∧ 𝐴 ∈ 𝐶)) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∧ wa 395 = wceq 1541 ∈ wcel 2113 ∩ cin 3898 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-ext 2706 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1544 df-ex 1781 df-sb 2068 df-clab 2713 df-cleq 2726 df-clel 2809 df-v 3440 df-in 3906 |
| This theorem is referenced by: elin3 4156 opelres 5942 elpredgg 6270 fnres 6617 funfvima 7174 fnwelem 8071 ressuppssdif 8125 fz1isolem 14382 isabl 19711 isogrp 20051 srhmsubclem1 20608 srhmsubc 20611 isidom 20656 isfld 20671 isofld 20795 2idlelb 21206 qus1 21227 qusrhm 21229 lmres 23242 isnvc 24637 cvslvec 25079 cvsclm 25080 iscvs 25081 cvsi 25084 ishl 25316 ply1pid 26142 rplogsum 27492 sltres 27628 iscusgr 29440 isphg 30841 ishlo 30911 hhsscms 31302 mayete3i 31752 bj-elid6 37314 bj-isrvec 37438 caures 37900 iscrngo 38136 fldcrngo 38144 isdmn 38194 isolat 39411 srhmsubcALTV 48513 |
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