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| Mirrors > Home > ILE Home > Th. List > elin2d | GIF version | ||
| Description: Elementhood in the first set of an intersection - deduction version. (Contributed by Thierry Arnoux, 3-May-2020.) |
| Ref | Expression |
|---|---|
| elin1d.1 | ⊢ (𝜑 → 𝑋 ∈ (𝐴 ∩ 𝐵)) |
| Ref | Expression |
|---|---|
| elin2d | ⊢ (𝜑 → 𝑋 ∈ 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elin1d.1 | . 2 ⊢ (𝜑 → 𝑋 ∈ (𝐴 ∩ 𝐵)) | |
| 2 | elinel2 3416 | . 2 ⊢ (𝑋 ∈ (𝐴 ∩ 𝐵) → 𝑋 ∈ 𝐵) | |
| 3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → 𝑋 ∈ 𝐵) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2209 ∩ cin 3219 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-v 2823 df-in 3226 |
| This theorem is used by: elfi2 7311 fiuni 7317 fifo 7319 sshashneg 11302 hashfibclem 11303 explecnv 12296 bitsinv1 12753 ballotfilemfmpn 13291 nninfdclemp1 13398 idomdomd 14694 sralmod 14895 2idlridld 14952 restbasg 15411 txcnp 15514 blin2 15675 ppiqsval 16257 chtqcl 16261 chtqval 16262 efchtqcl 16263 chtqge0 16264 ppinprm 16277 chtprm 16278 chtnprm 16279 chtqwordi 16280 chtdif 16281 efchtqdvds 16282 chtqleppi 16311 bj-charfun 17055 bj-charfundc 17056 |
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