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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 rule). (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 680 | . . 3 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑦 ∈ 𝐵) → (𝜓 ↔ 𝜒)) |
3 | 2 | ralbidva 2985 | . 2 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (∀𝑦 ∈ 𝐵 𝜓 ↔ ∀𝑦 ∈ 𝐵 𝜒)) |
4 | 3 | ralbidva 2985 | 1 ⊢ (𝜑 → (∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜓 ↔ ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜒)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 196 ∧ wa 384 ∈ wcel 1990 ∀wral 2912 |
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 |
This theorem depends on definitions: df-bi 197 df-an 386 df-ral 2917 |
This theorem is referenced by: disjxun 4651 isocnv3 6582 isotr 6586 f1oweALT 7152 fnmpt2ovd 7252 tosso 17036 pospropd 17134 isipodrs 17161 mndpropd 17316 mhmpropd 17341 efgred 18161 cmnpropd 18202 ringpropd 18582 lmodprop2d 18925 lsspropd 19017 islmhm2 19038 lmhmpropd 19073 assapropd 19327 islindf4 20177 scmatmats 20317 cpmatel2 20518 1elcpmat 20520 m2cpminvid2 20560 decpmataa0 20573 pmatcollpw2lem 20582 connsub 21224 hausdiag 21448 ist0-4 21532 ismet2 22138 txmetcnp 22352 txmetcn 22353 metuel2 22370 metucn 22376 isngp3 22402 nlmvscn 22491 isclmp 22897 isncvsngp 22949 ipcn 23045 iscfil2 23064 caucfil 23081 cfilresi 23093 ulmdvlem3 24156 cxpcn3 24489 tgcgr4 25426 perpcom 25608 brbtwn2 25785 colinearalglem2 25787 eengtrkg 25865 isarchi2 29739 elmrsubrn 31417 isbnd3b 33584 iscvlat2N 34611 ishlat3N 34641 gicabl 37669 isdomn3 37782 mgmpropd 41775 mgmhmpropd 41785 lidlmmgm 41925 lindslinindsimp2 42252 |
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