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Mirrors > Home > MPE Home > Th. List > rexralbidv | Structured version Visualization version GIF version |
Description: Formula-building rule for restricted quantifiers (deduction rule). (Contributed by NM, 28-Jan-2006.) |
Ref | Expression |
---|---|
2rexbidv.1 | ⊢ (𝜑 → (𝜓 ↔ 𝜒)) |
Ref | Expression |
---|---|
rexralbidv | ⊢ (𝜑 → (∃𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜓 ↔ ∃𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜒)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2rexbidv.1 | . . 3 ⊢ (𝜑 → (𝜓 ↔ 𝜒)) | |
2 | 1 | ralbidv 2969 | . 2 ⊢ (𝜑 → (∀𝑦 ∈ 𝐵 𝜓 ↔ ∀𝑦 ∈ 𝐵 𝜒)) |
3 | 2 | rexbidv 3034 | 1 ⊢ (𝜑 → (∃𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜓 ↔ ∃𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜒)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 195 ∀wral 2896 ∃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 |
This theorem depends on definitions: df-bi 196 df-an 385 df-ex 1696 df-ral 2901 df-rex 2902 |
This theorem is referenced by: freq1 5008 rexfiuz 13935 cau3lem 13942 caubnd2 13945 climi 14089 rlimi 14092 o1lo1 14116 2clim 14151 lo1le 14230 caucvgrlem 14251 caurcvgr 14252 caucvgb 14258 vdwlem10 15532 vdwlem13 15535 pmatcollpw2lem 20401 neiptopnei 20746 lmcvg 20876 lmss 20912 elpt 21185 elptr 21186 txlm 21261 tsmsi 21747 ustuqtop4 21858 isucn 21892 isucn2 21893 ucnima 21895 metcnpi 22159 metcnpi2 22160 metucn 22186 xrge0tsms 22445 elcncf 22500 cncfi 22505 lmmcvg 22867 lhop1 23581 ulmval 23938 ulmi 23944 ulmcaulem 23952 ulmdvlem3 23960 pntibnd 25082 pntlem3 25098 pntleml 25100 axtgcont1 25167 perpln1 25405 perpln2 25406 isperp 25407 brbtwn 25579 isgrpo 26735 ubthlem3 27112 ubth 27113 hcau 27425 hcaucvg 27427 hlimi 27429 hlimconvi 27432 hlim2 27433 elcnop 28100 elcnfn 28125 cnopc 28156 cnfnc 28173 lnopcon 28278 lnfncon 28299 riesz1 28308 xrge0tsmsd 29116 signsply0 29954 limcleqr 38711 addlimc 38715 0ellimcdiv 38716 climd 38739 cncfshift 38759 cncfperiod 38764 ioodvbdlimc1lem1 38821 ioodvbdlimc1lem2 38822 ioodvbdlimc2lem 38824 fourierdlem68 39067 fourierdlem87 39086 fourierdlem103 39102 fourierdlem104 39103 etransclem48 39175 |
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