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| Mirrors > Home > ILE Home > Th. List > rexlimivv | GIF version | ||
| Description: Inference from Theorem 19.23 of [Margaris] p. 90 (restricted quantifier version). (Contributed by NM, 17-Feb-2004.) |
| Ref | Expression |
|---|---|
| rexlimivv.1 | ⊢ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) → (𝜑 → 𝜓)) |
| Ref | Expression |
|---|---|
| rexlimivv | ⊢ (∃𝑥 ∈ 𝐴 ∃𝑦 ∈ 𝐵 𝜑 → 𝜓) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rexlimivv.1 | . . 3 ⊢ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) → (𝜑 → 𝜓)) | |
| 2 | 1 | rexlimdva 2662 | . 2 ⊢ (𝑥 ∈ 𝐴 → (∃𝑦 ∈ 𝐵 𝜑 → 𝜓)) |
| 3 | 2 | rexlimiv 2656 | 1 ⊢ (∃𝑥 ∈ 𝐴 ∃𝑦 ∈ 𝐵 𝜑 → 𝜓) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ∈ wcel 2205 ∃wrex 2523 |
| 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-5 1496 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-4 1559 ax-17 1575 ax-ial 1583 ax-i5r 1584 |
| This theorem depends on definitions: df-bi 117 df-nf 1510 df-ral 2527 df-rex 2528 |
| This theorem is referenced by: opelxp 4781 f1o2ndf1 6426 xpdom2 7084 distrlem5prl 7903 distrlem5pru 7904 mulrid 8273 cnegex 8453 recexap 8929 creur 9235 creui 9236 cju 9237 elz2 9651 qre 9960 qaddcl 9970 qnegcl 9971 qmulcl 9972 qreccl 9977 elpqb 9985 fundm2domnop0 11224 replim 11548 prodmodc 12268 odd2np1 12563 opoe 12585 omoe 12586 opeo 12587 omeo 12588 qredeu 12798 pythagtriplem1 12967 pcz 13034 4sqlem1 13090 4sqlem2 13091 4sqlem4 13094 mul4sq 13096 txuni2 15138 blssioo 15435 tgioo 15436 elply 15616 2sqlem2 16005 mul2sq 16006 2sqlem7 16011 upgredgpr 16161 |
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