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| Mirrors > Home > ILE Home > Th. List > rspcedvd | GIF version | ||
| Description: Restricted existential specialization, using implicit substitution. Variant of rspcedv 2924. (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 2924 | . 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 1398 ∈ wcel 2203 ∃wrex 2521 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2214 |
| This theorem depends on definitions: df-bi 117 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-rex 2526 df-v 2814 |
| This theorem is referenced by: rspcime 2927 rspcedeq1vd 2929 rspcedeq2vd 2930 updjud 7372 elpq 9980 modqmuladd 10727 modqmuladdnn0 10729 modfzo0difsn 10756 wrdl1exs1 11313 negfi 11909 divconjdvds 12531 2tp1odd 12566 dfgcd2 12706 qredeu 12790 pw2dvdslemn 12858 dvdsprmpweq 13029 oddprmdvds 13048 gsumfzval 13596 gsumval2 13602 isnsgrp 13611 dfgrp2 13732 grplrinv 13762 grpidinv 13764 dfgrp3m 13804 ringid 14162 xmettx 15367 gausslemma2dlem1a 15923 2lgslem1b 15954 usgredg4 16202 wlkvtxiedg 16332 wlkvtxiedgg 16333 umgr2cwwkdifex 16412 bj-charfunbi 16573 |
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