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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 2828 | . 2 ⊢ (𝐴 ∈ 𝑋 ↔ 𝐴 ∈ (𝐵 ∩ 𝐶)) |
| 3 | elin 3917 | . 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 3900 |
| 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 2708 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1544 df-ex 1781 df-sb 2068 df-clab 2715 df-cleq 2728 df-clel 2811 df-v 3442 df-in 3908 |
| This theorem is referenced by: elin3 4158 opelres 5944 elpredgg 6272 fnres 6619 funfvima 7176 fnwelem 8073 ressuppssdif 8127 fz1isolem 14384 isabl 19713 isogrp 20053 srhmsubclem1 20610 srhmsubc 20613 isidom 20658 isfld 20673 isofld 20797 2idlelb 21208 qus1 21229 qusrhm 21231 lmres 23244 isnvc 24639 cvslvec 25081 cvsclm 25082 iscvs 25083 cvsi 25086 ishl 25318 ply1pid 26144 rplogsum 27494 ltsres 27630 iscusgr 29491 isphg 30892 ishlo 30962 hhsscms 31353 mayete3i 31803 bj-elid6 37375 bj-isrvec 37499 caures 37961 iscrngo 38197 fldcrngo 38205 isdmn 38255 isolat 39472 srhmsubcALTV 48571 |
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