| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > 2ralbii | Structured version Visualization version GIF version | ||
| Description: Inference adding two restricted universal quantifiers to both sides of an equivalence. (Contributed by NM, 1-Aug-2004.) |
| Ref | Expression |
|---|---|
| 2ralbii.1 | ⊢ (𝜑 ↔ 𝜓) |
| Ref | Expression |
|---|---|
| 2ralbii | ⊢ (∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜑 ↔ ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜓) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2ralbii.1 | . . 3 ⊢ (𝜑 ↔ 𝜓) | |
| 2 | 1 | ralbii 3084 | . 2 ⊢ (∀𝑦 ∈ 𝐵 𝜑 ↔ ∀𝑦 ∈ 𝐵 𝜓) |
| 3 | 2 | ralbii 3084 | 1 ⊢ (∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜑 ↔ ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜓) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 ∀wral 3052 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 |
| This theorem depends on definitions: df-bi 207 df-ral 3053 |
| This theorem is referenced by: 3ralbii 3115 ralnex3 3119 rmo4f 3682 2reu4lem 4464 cnvso 6247 fununi 6568 dff14a 7219 isocnv2 7280 f1opr 7417 sorpss 7676 xpord3inddlem 8098 tpossym 8202 dford2 9535 isffth2 17879 ispos2 18275 issubmgm 18664 issubm 18765 cntzrec 19305 oppgsubm 19331 opprirred 20396 opprsubrng 20530 rhmimasubrng 20537 cntzsubrng 20538 opprsubrg 20564 isdomn5 20681 isdomn3 20686 gsummatr01lem3 22635 gsummatr01 22637 isbasis2g 22926 ist0-3 23323 isfbas2 23813 isclmp 25077 addsproplem4 27981 addsproplem6 27983 addsprop 27985 negsproplem4 28040 negsproplem6 28042 negsprop 28044 mulsprop 28139 dfadj2 31974 adjval2 31980 cnlnadjeui 32166 adjbdln 32172 isarchi 33261 prmidl0 33528 ply1dg3rt0irred 33662 dff15 35246 iccllysconn 35451 dfso3 35921 elpotr 35980 dfon2 35991 idinxpss 38656 inxpssidinxp 38660 idinxpssinxp 38661 dfdisjALTV5a 39141 dfeldisj5 39151 dfeldisj5a 39152 isltrn2N 40583 hashnexinj 42584 fphpd 43265 fiinfi 44021 ntrk1k3eqk13 44498 ordelordALT 44985 dfac5prim 45438 disjinfi 45643 isthinc2 49910 isthinc3 49911 |
| Copyright terms: Public domain | W3C validator |