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Mirrors > Home > MPE Home > Th. List > 2ralbidva | Structured version Visualization version GIF version |
Description: Formula-building rule for restricted universal quantifiers (deduction form). (Contributed by NM, 4-Mar-1997.) Reduce dependencies on axioms. (Revised by Wolf Lammen, 9-Dec-2019.) |
Ref | Expression |
---|---|
2ralbidva.1 | ⊢ ((𝜑 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵)) → (𝜓 ↔ 𝜒)) |
Ref | Expression |
---|---|
2ralbidva | ⊢ (𝜑 → (∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜓 ↔ ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜒)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2ralbidva.1 | . . . 4 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵)) → (𝜓 ↔ 𝜒)) | |
2 | 1 | anassrs 468 | . . 3 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑦 ∈ 𝐵) → (𝜓 ↔ 𝜒)) |
3 | 2 | ralbidva 3168 | . 2 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (∀𝑦 ∈ 𝐵 𝜓 ↔ ∀𝑦 ∈ 𝐵 𝜒)) |
4 | 3 | ralbidva 3168 | 1 ⊢ (𝜑 → (∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜓 ↔ ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜒)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 ∈ wcel 2106 ∀wral 3060 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 |
This theorem depends on definitions: df-bi 206 df-an 397 df-ral 3061 |
This theorem is referenced by: disjxun 5108 reu3op 6249 opreu2reurex 6251 isocnv3 7282 isotr 7286 f1oweALT 7910 fnmpoovd 8024 pospropd 18230 tosso 18322 isipodrs 18440 mndpropd 18595 mhmpropd 18622 efgred 19544 cmnpropd 19587 ringpropd 20020 lmodprop2d 20441 lsspropd 20535 islmhm2 20556 lmhmpropd 20591 islindf4 21281 assapropd 21312 scmatmats 21897 cpmatel2 22099 1elcpmat 22101 m2cpminvid2 22141 decpmataa0 22154 pmatcollpw2lem 22163 connsub 22809 hausdiag 23033 ist0-4 23117 ismet2 23723 txmetcnp 23940 txmetcn 23941 metuel2 23958 metucn 23964 isngp3 23991 nlmvscn 24088 isclmp 24497 isncvsngp 24550 ipcn 24647 iscfil2 24667 caucfil 24684 cfilresi 24696 ulmdvlem3 25798 cxpcn3 26138 tgjustf 27478 tgjustr 27479 tgcgr4 27536 perpcom 27718 brbtwn2 27917 colinearalglem2 27919 eengtrkg 27998 isarchi2 32091 elmrsubrn 34201 isbnd3b 36317 iscvlat2N 37859 ishlat3N 37889 gicabl 41484 isdomn3 41589 mgmpropd 46189 mgmhmpropd 46199 lidlmmgm 46343 lindslinindsimp2 46664 joindm3 47122 meetdm3 47124 functhinclem1 47181 postc 47222 |
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