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| Mirrors > Home > ILE Home > Th. List > rexlimdvaa | GIF version | ||
| Description: Inference from Theorem 19.23 of [Margaris] p. 90 (restricted quantifier version). (Contributed by Mario Carneiro, 15-Jun-2016.) |
| Ref | Expression |
|---|---|
| rexlimdvaa.1 | ⊢ ((𝜑 ∧ (𝑥 ∈ 𝐴 ∧ 𝜓)) → 𝜒) |
| Ref | Expression |
|---|---|
| rexlimdvaa | ⊢ (𝜑 → (∃𝑥 ∈ 𝐴 𝜓 → 𝜒)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rexlimdvaa.1 | . . 3 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝐴 ∧ 𝜓)) → 𝜒) | |
| 2 | 1 | expr 375 | . 2 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (𝜓 → 𝜒)) |
| 3 | 2 | rexlimdva 2668 | 1 ⊢ (𝜑 → (∃𝑥 ∈ 𝐴 𝜓 → 𝜒)) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 104 ∈ wcel 2209 ∃wrex 2529 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-4 1563 ax-17 1579 ax-ial 1587 ax-i5r 1588 |
| This proof depends on definitions: df-bi 117 df-nf 1514 df-ral 2533 df-rex 2534 |
| This theorem is used by: rexlimddv 2673 nnsucuniel 6768 omp1eomlem 7434 ctmlemr 7448 mulgt0sr 8145 axpre-suploclemres 8268 cnegex 8504 receuap 9000 recapb 9002 rexanuz 11756 climcaucn 12119 fsumiun 12246 dvdsval2 12559 nninfctlemfo 12819 prmind2 12900 pcprmpw2 13114 pockthg 13138 dvdsrvald 14402 dvdsrd 14403 dvdsrex 14407 unitgrp 14425 isnzr2 14493 znunit 14996 tgcl 15167 neiint 15248 restopnb 15284 iscnp4 15321 blssexps 15532 blssex 15533 lgsne0 16169 lgsquadlem1 16208 |
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