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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 7435 ctmlemr 7449 mulgt0sr 8146 axpre-suploclemres 8269 cnegex 8506 receuap 9002 recapb 9004 rexanuz 11769 fiidxsupcl 12011 climcaucn 12135 fsumiun 12262 dvdsval2 12575 nninfctlemfo 12835 prmind2 12916 nn0sqdcq 13006 sqrtrirr 13007 pcprmpw2 13134 pockthg 13158 dvdsrvald 14451 dvdsrd 14452 dvdsrex 14456 unitgrp 14474 isnzr2 14542 znunit 15045 tgcl 15217 neiint 15298 restopnb 15334 iscnp4 15371 blssexps 15582 blssex 15583 lgsne0 16279 lgsquadlem1 16318 |
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