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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 6773 omp1eomlem 7441 ctmlemr 7455 mulgt0sr 8152 axpre-suploclemres 8275 cnegex 8512 receuap 9008 recapb 9010 rexanuz 11776 fiidxsupcl 12018 climcaucn 12142 fsumiun 12269 dvdsval2 12582 nninfctlemfo 12842 prmind2 12923 nn0sqdcq 13013 sqrtrirr 13014 pcprmpw2 13141 pockthg 13165 dvdsrvald 14509 dvdsrd 14510 dvdsrex 14514 unitgrp 14532 isnzr2 14600 znunit 15103 tgcl 15323 neiint 15404 restopnb 15440 iscnp4 15477 blssexps 15688 blssex 15689 lgsne0 16395 lgsquadlem1 16434 |
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