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Mirrors > Home > MPE Home > Th. List > eeanv | Structured version Visualization version GIF version |
Description: Rearrange existential quantifiers. (Contributed by NM, 26-Jul-1995.) |
Ref | Expression |
---|---|
eeanv | ⊢ (∃𝑥∃𝑦(𝜑 ∧ 𝜓) ↔ (∃𝑥𝜑 ∧ ∃𝑦𝜓)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfv 1843 | . 2 ⊢ Ⅎ𝑦𝜑 | |
2 | nfv 1843 | . 2 ⊢ Ⅎ𝑥𝜓 | |
3 | 1, 2 | eean 2181 | 1 ⊢ (∃𝑥∃𝑦(𝜑 ∧ 𝜓) ↔ (∃𝑥𝜑 ∧ ∃𝑦𝜓)) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 196 ∧ wa 384 ∃wex 1704 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-10 2019 ax-11 2034 ax-12 2047 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-ex 1705 df-nf 1710 |
This theorem is referenced by: eeeanv 2183 ee4anv 2184 2mo2 2550 cgsex2g 3239 cgsex4g 3240 vtocl2 3261 spc2egv 3295 dtru 4857 copsex2t 4957 copsex2g 4958 xpnz 5553 fununi 5964 wfrlem4 7418 wfrfun 7425 tfrlem7 7479 ener 8002 enerOLD 8003 domtr 8009 unen 8040 undom 8048 sbthlem10 8079 mapen 8124 infxpenc2 8845 fseqen 8850 dfac5lem4 8949 zorn2lem6 9323 fpwwe2lem12 9463 genpnnp 9827 hashfacen 13238 summo 14448 ntrivcvgmul 14634 prodmo 14666 iscatd2 16342 gictr 17717 gsumval3eu 18305 ptbasin 21380 txcls 21407 txbasval 21409 hmphtr 21586 reconn 22631 phtpcer 22794 phtpcerOLD 22795 pcohtpy 22820 mbfi1flimlem 23489 mbfmullem 23492 itg2add 23526 spc2ed 29312 brabgaf 29420 pconnconn 31213 txsconn 31223 frrlem4 31783 frrlem5c 31786 neibastop1 32354 bj-dtru 32797 riscer 33787 fnchoice 39188 fzisoeu 39514 stoweidlem35 40252 elsprel 41725 |
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