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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 11297 hashfibclem 11298 explecnv 12291 bitsinv1 12748 ballotfilemfmpn 13286 nninfdclemp1 13393 idomdomd 14670 sralmod 14871 2idlridld 14928 restbasg 15360 txcnp 15463 blin2 15624 ppiqsval 16201 chtqcl 16205 chtqval 16206 efchtqcl 16207 chtqge0 16208 ppinprm 16221 chtprm 16222 chtnprm 16223 chtqwordi 16224 chtdif 16225 efchtqdvds 16226 chtqleppi 16255 bj-charfun 16999 bj-charfundc 17000 |
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