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Mirrors > Home > MPE Home > Th. List > r19.41v | Structured version Visualization version GIF version |
Description: Restricted quantifier version 19.41v 1901. Version of r19.41 3071 with a dv condition, requiring fewer axioms. (Contributed by NM, 17-Dec-2003.) Reduce dependencies on axioms. (Revised by BJ, 29-Mar-2020.) |
Ref | Expression |
---|---|
r19.41v | ⊢ (∃𝑥 ∈ 𝐴 (𝜑 ∧ 𝜓) ↔ (∃𝑥 ∈ 𝐴 𝜑 ∧ 𝜓)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | anass 679 | . . . 4 ⊢ (((𝑥 ∈ 𝐴 ∧ 𝜑) ∧ 𝜓) ↔ (𝑥 ∈ 𝐴 ∧ (𝜑 ∧ 𝜓))) | |
2 | 1 | exbii 1764 | . . 3 ⊢ (∃𝑥((𝑥 ∈ 𝐴 ∧ 𝜑) ∧ 𝜓) ↔ ∃𝑥(𝑥 ∈ 𝐴 ∧ (𝜑 ∧ 𝜓))) |
3 | 19.41v 1901 | . . 3 ⊢ (∃𝑥((𝑥 ∈ 𝐴 ∧ 𝜑) ∧ 𝜓) ↔ (∃𝑥(𝑥 ∈ 𝐴 ∧ 𝜑) ∧ 𝜓)) | |
4 | 2, 3 | bitr3i 265 | . 2 ⊢ (∃𝑥(𝑥 ∈ 𝐴 ∧ (𝜑 ∧ 𝜓)) ↔ (∃𝑥(𝑥 ∈ 𝐴 ∧ 𝜑) ∧ 𝜓)) |
5 | df-rex 2902 | . 2 ⊢ (∃𝑥 ∈ 𝐴 (𝜑 ∧ 𝜓) ↔ ∃𝑥(𝑥 ∈ 𝐴 ∧ (𝜑 ∧ 𝜓))) | |
6 | df-rex 2902 | . . 3 ⊢ (∃𝑥 ∈ 𝐴 𝜑 ↔ ∃𝑥(𝑥 ∈ 𝐴 ∧ 𝜑)) | |
7 | 6 | anbi1i 727 | . 2 ⊢ ((∃𝑥 ∈ 𝐴 𝜑 ∧ 𝜓) ↔ (∃𝑥(𝑥 ∈ 𝐴 ∧ 𝜑) ∧ 𝜓)) |
8 | 4, 5, 7 | 3bitr4i 291 | 1 ⊢ (∃𝑥 ∈ 𝐴 (𝜑 ∧ 𝜓) ↔ (∃𝑥 ∈ 𝐴 𝜑 ∧ 𝜓)) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 195 ∧ wa 383 ∃wex 1695 ∈ wcel 1977 ∃wrex 2897 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 |
This theorem depends on definitions: df-bi 196 df-an 385 df-ex 1696 df-rex 2902 |
This theorem is referenced by: r19.41vv 3072 r19.42v 3073 3reeanv 3087 reuind 3378 iuncom4 4464 dfiun2g 4488 iunxiun 4544 inuni 4753 reuxfrd 4819 xpiundi 5096 xpiundir 5097 imaco 5557 coiun 5562 abrexco 6406 imaiun 6407 isomin 6487 isoini 6488 oarec 7529 mapsnen 7920 genpass 9710 4fvwrd4 12328 4sqlem12 15498 imasleval 16024 lsmspsn 18905 utoptop 21848 metrest 22139 metust 22173 cfilucfil 22174 metuel2 22180 istrkg2ld 25159 axsegcon 25607 usgreg2spot 26594 nmoo0 27030 hhcmpl 27441 nmop0 28229 nmfn0 28230 reuxfr4d 28714 rexunirn 28715 ordtconlem1 29298 dya2icoseg2 29667 dya2iocnei 29671 omssubaddlem 29688 omssubadd 29689 nofulllem5 31105 bj-mpt2mptALT 32253 mptsnunlem 32361 rabiun 32552 iundif1 32553 poimir 32612 ismblfin 32620 prtlem11 33169 prter2 33184 prter3 33185 islshpat 33322 lshpsmreu 33414 islpln5 33839 islvol5 33883 cdlemftr3 34871 dvhb1dimN 35292 dib1dim 35472 mapdpglem3 35982 hdmapglem7a 36237 diophrex 36357 mapsnend 38386 fusgreg2wsp 41500 |
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