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| Mirrors > Home > ILE Home > Th. List > reximi | GIF version | ||
| Description: Inference quantifying both antecedent and consequent. (Contributed by NM, 18-Oct-1996.) |
| Ref | Expression |
|---|---|
| reximi.1 | ⊢ (𝜑 → 𝜓) |
| Ref | Expression |
|---|---|
| reximi | ⊢ (∃𝑥 ∈ 𝐴 𝜑 → ∃𝑥 ∈ 𝐴 𝜓) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | reximi.1 | . . 3 ⊢ (𝜑 → 𝜓) | |
| 2 | 1 | a1i 9 | . 2 ⊢ (𝑥 ∈ 𝐴 → (𝜑 → 𝜓)) |
| 3 | 2 | reximia 2645 | 1 ⊢ (∃𝑥 ∈ 𝐴 𝜑 → ∃𝑥 ∈ 𝐴 𝜓) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∈ 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-ial 1587 |
| This proof depends on definitions: df-bi 117 df-ral 2533 df-rex 2534 |
| This theorem is used by: rexanaliim 2656 r19.29d2r 2695 r19.35-1 2701 r19.40 2705 reu3 3016 ssiun 4054 iinss 4064 elunirn 5972 tfrcllemssrecs 6623 nnawordex 6802 iinerm 6881 erovlem 6901 xpf1o 7144 fidcenumlemim 7269 omniwomnimkv 7507 genprndl 7888 genprndu 7889 appdiv0nq 7931 ltexprlemm 7967 recexsrlem 8141 rereceu 8256 recexre 8907 aprcl 8975 rexanre 11988 climi2 12056 climi0 12057 climcaucn 12119 prodmodclem2 12346 prodmodc 12347 gcdsupex 12736 gcdsupcl 12737 bezoutlemeu 12786 dfgcd3 12789 isnsgrp 13723 rhmdvdsr 14484 eltg2b 15157 lmcvg 15320 cnptoprest 15342 lmtopcnp 15353 txbas 15361 metrest 15609 elply2 15838 2sqlem7 16252 umgr2edg1 16462 umgr2edgneu 16465 bj-charfunbi 16849 bj-findis 17017 |
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