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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 7306 fiuni 7312 fifo 7314 sshashneg 11295 hashfibclem 11296 explecnv 12288 bitsinv1 12745 ballotfilemfmpn 13283 nninfdclemp1 13390 idomdomd 14635 sralmod 14836 2idlridld 14893 restbasg 15318 txcnp 15421 blin2 15582 ppiqsval 16156 ppinprm 16171 bj-charfun 16931 bj-charfundc 16932 |
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