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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 2829 | . 2 ⊢ (𝐴 ∈ 𝑋 ↔ 𝐴 ∈ (𝐵 ∩ 𝐶)) |
| 3 | elin 3906 | . 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 1542 ∈ wcel 2114 ∩ cin 3889 |
| 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-v 3432 df-in 3897 |
| This theorem is referenced by: elin3 4147 opelres 5945 elpredgg 6273 fnres 6620 funfvima 7179 fnwelem 8075 ressuppssdif 8129 fz1isolem 14417 isabl 19753 isogrp 20093 srhmsubclem1 20648 srhmsubc 20651 isidom 20696 isfld 20711 isofld 20835 2idlelb 21246 qus1 21267 qusrhm 21269 lmres 23278 isnvc 24673 cvslvec 25105 cvsclm 25106 iscvs 25107 cvsi 25110 ishl 25342 ply1pid 26161 rplogsum 27507 ltsres 27643 iscusgr 29504 isphg 30906 ishlo 30976 hhsscms 31367 mayete3i 31817 bj-elid6 37503 bj-isrvec 37627 caures 38098 iscrngo 38334 fldcrngo 38342 isdmn 38392 isolat 39675 srhmsubcALTV 48816 |
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