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| Mirrors > Home > ILE Home > Th. List > rspcedvd | GIF version | ||
| Description: Restricted existential specialization, using implicit substitution. Variant of rspcedv 2882. (Contributed by AV, 27-Nov-2019.) |
| Ref | Expression |
|---|---|
| rspcedvd.1 | ⊢ (𝜑 → 𝐴 ∈ 𝐵) |
| rspcedvd.2 | ⊢ ((𝜑 ∧ 𝑥 = 𝐴) → (𝜓 ↔ 𝜒)) |
| rspcedvd.3 | ⊢ (𝜑 → 𝜒) |
| Ref | Expression |
|---|---|
| rspcedvd | ⊢ (𝜑 → ∃𝑥 ∈ 𝐵 𝜓) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rspcedvd.3 | . 2 ⊢ (𝜑 → 𝜒) | |
| 2 | rspcedvd.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ 𝐵) | |
| 3 | rspcedvd.2 | . . 3 ⊢ ((𝜑 ∧ 𝑥 = 𝐴) → (𝜓 ↔ 𝜒)) | |
| 4 | 2, 3 | rspcedv 2882 | . 2 ⊢ (𝜑 → (𝜒 → ∃𝑥 ∈ 𝐵 𝜓)) |
| 5 | 1, 4 | mpd 13 | 1 ⊢ (𝜑 → ∃𝑥 ∈ 𝐵 𝜓) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ↔ wb 105 = wceq 1373 ∈ wcel 2177 ∃wrex 2486 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-ext 2188 |
| This theorem depends on definitions: df-bi 117 df-tru 1376 df-nf 1485 df-sb 1787 df-clab 2193 df-cleq 2199 df-clel 2202 df-nfc 2338 df-rex 2491 df-v 2775 |
| This theorem is referenced by: rspcime 2885 rspcedeq1vd 2887 rspcedeq2vd 2888 updjud 7191 elpq 9777 modqmuladd 10518 modqmuladdnn0 10520 modfzo0difsn 10547 wrdl1exs1 11091 negfi 11583 divconjdvds 12204 2tp1odd 12239 dfgcd2 12379 qredeu 12463 pw2dvdslemn 12531 dvdsprmpweq 12702 oddprmdvds 12721 gsumfzval 13267 gsumval2 13273 isnsgrp 13282 dfgrp2 13403 grplrinv 13433 grpidinv 13435 dfgrp3m 13475 ringid 13832 xmettx 15026 gausslemma2dlem1a 15579 2lgslem1b 15610 bj-charfunbi 15821 |
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