Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
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 678 | . . 3 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝐴) ∧ 𝑦 ∈ 𝐵) → (𝜓 ↔ 𝜒)) |
3 | 2 | ralbidva 2968 | . 2 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (∀𝑦 ∈ 𝐵 𝜓 ↔ ∀𝑦 ∈ 𝐵 𝜒)) |
4 | 3 | ralbidva 2968 | 1 ⊢ (𝜑 → (∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜓 ↔ ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜒)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 195 ∧ wa 383 ∈ wcel 1977 ∀wral 2896 |
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-ral 2901 |
This theorem is referenced by: disjxun 4581 isocnv3 6482 isotr 6486 f1oweALT 7043 fnmpt2ovd 7139 tosso 16859 pospropd 16957 isipodrs 16984 mndpropd 17139 mhmpropd 17164 efgred 17984 cmnpropd 18025 ringpropd 18405 lmodprop2d 18748 lsspropd 18838 islmhm2 18859 lmhmpropd 18894 assapropd 19148 islindf4 19996 scmatmats 20136 cpmatel2 20337 1elcpmat 20339 m2cpminvid2 20379 decpmataa0 20392 pmatcollpw2lem 20401 connsub 21034 hausdiag 21258 ist0-4 21342 ismet2 21948 txmetcnp 22162 txmetcn 22163 metuel2 22180 metucn 22186 isngp3 22212 nlmvscn 22301 isclmp 22705 isncvsngp 22757 ipcn 22853 iscfil2 22872 caucfil 22889 cfilresi 22901 ulmdvlem3 23960 cxpcn3 24289 tgcgr4 25226 perpcom 25408 brbtwn2 25585 colinearalglem2 25587 eengtrkg 25665 isarchi2 29070 elmrsubrn 30671 isbnd3b 32754 iscvlat2N 33629 ishlat3N 33659 gicabl 36687 isdomn3 36801 mgmpropd 41565 mgmhmpropd 41575 lidlmmgm 41715 lindslinindsimp2 42046 |
Copyright terms: Public domain | W3C validator |