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Mirrors > Home > MPE Home > Th. List > ralunb | Structured version Visualization version GIF version |
Description: Restricted quantification over a union. (Contributed by Scott Fenton, 12-Apr-2011.) (Proof shortened by Andrew Salmon, 29-Jun-2011.) |
Ref | Expression |
---|---|
ralunb | ⊢ (∀𝑥 ∈ (𝐴 ∪ 𝐵)𝜑 ↔ (∀𝑥 ∈ 𝐴 𝜑 ∧ ∀𝑥 ∈ 𝐵 𝜑)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elun 3715 | . . . . . 6 ⊢ (𝑥 ∈ (𝐴 ∪ 𝐵) ↔ (𝑥 ∈ 𝐴 ∨ 𝑥 ∈ 𝐵)) | |
2 | 1 | imbi1i 338 | . . . . 5 ⊢ ((𝑥 ∈ (𝐴 ∪ 𝐵) → 𝜑) ↔ ((𝑥 ∈ 𝐴 ∨ 𝑥 ∈ 𝐵) → 𝜑)) |
3 | jaob 818 | . . . . 5 ⊢ (((𝑥 ∈ 𝐴 ∨ 𝑥 ∈ 𝐵) → 𝜑) ↔ ((𝑥 ∈ 𝐴 → 𝜑) ∧ (𝑥 ∈ 𝐵 → 𝜑))) | |
4 | 2, 3 | bitri 263 | . . . 4 ⊢ ((𝑥 ∈ (𝐴 ∪ 𝐵) → 𝜑) ↔ ((𝑥 ∈ 𝐴 → 𝜑) ∧ (𝑥 ∈ 𝐵 → 𝜑))) |
5 | 4 | albii 1737 | . . 3 ⊢ (∀𝑥(𝑥 ∈ (𝐴 ∪ 𝐵) → 𝜑) ↔ ∀𝑥((𝑥 ∈ 𝐴 → 𝜑) ∧ (𝑥 ∈ 𝐵 → 𝜑))) |
6 | 19.26 1786 | . . 3 ⊢ (∀𝑥((𝑥 ∈ 𝐴 → 𝜑) ∧ (𝑥 ∈ 𝐵 → 𝜑)) ↔ (∀𝑥(𝑥 ∈ 𝐴 → 𝜑) ∧ ∀𝑥(𝑥 ∈ 𝐵 → 𝜑))) | |
7 | 5, 6 | bitri 263 | . 2 ⊢ (∀𝑥(𝑥 ∈ (𝐴 ∪ 𝐵) → 𝜑) ↔ (∀𝑥(𝑥 ∈ 𝐴 → 𝜑) ∧ ∀𝑥(𝑥 ∈ 𝐵 → 𝜑))) |
8 | df-ral 2901 | . 2 ⊢ (∀𝑥 ∈ (𝐴 ∪ 𝐵)𝜑 ↔ ∀𝑥(𝑥 ∈ (𝐴 ∪ 𝐵) → 𝜑)) | |
9 | df-ral 2901 | . . 3 ⊢ (∀𝑥 ∈ 𝐴 𝜑 ↔ ∀𝑥(𝑥 ∈ 𝐴 → 𝜑)) | |
10 | df-ral 2901 | . . 3 ⊢ (∀𝑥 ∈ 𝐵 𝜑 ↔ ∀𝑥(𝑥 ∈ 𝐵 → 𝜑)) | |
11 | 9, 10 | anbi12i 729 | . 2 ⊢ ((∀𝑥 ∈ 𝐴 𝜑 ∧ ∀𝑥 ∈ 𝐵 𝜑) ↔ (∀𝑥(𝑥 ∈ 𝐴 → 𝜑) ∧ ∀𝑥(𝑥 ∈ 𝐵 → 𝜑))) |
12 | 7, 8, 11 | 3bitr4i 291 | 1 ⊢ (∀𝑥 ∈ (𝐴 ∪ 𝐵)𝜑 ↔ (∀𝑥 ∈ 𝐴 𝜑 ∧ ∀𝑥 ∈ 𝐵 𝜑)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 195 ∨ wo 382 ∧ wa 383 ∀wal 1473 ∈ wcel 1977 ∀wral 2896 ∪ cun 3538 |
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 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ral 2901 df-v 3175 df-un 3545 |
This theorem is referenced by: ralun 3757 raldifeq 4011 ralprg 4181 raltpg 4183 ralunsn 4360 disjxun 4581 undifixp 7830 ixpfi2 8147 dffi3 8220 fseqenlem1 8730 hashf1lem1 13096 2swrdeqwrdeq 13305 rexfiuz 13935 modfsummods 14366 modfsummod 14367 coprmproddvdslem 15214 prmind2 15236 prmreclem2 15459 lubun 16946 efgsp1 17973 coe1fzgsumdlem 19492 evl1gsumdlem 19541 unocv 19843 basdif0 20568 isclo 20701 ordtrest2 20818 ptbasfi 21194 ptcnplem 21234 ptrescn 21252 ordthmeolem 21414 prdsxmetlem 21983 prdsbl 22106 iblcnlem1 23360 ellimc2 23447 rlimcnp 24492 xrlimcnp 24495 ftalem3 24601 dchreq 24783 2sqlem10 24953 dchrisum0flb 24999 pntpbnd1 25075 4cycl4v4e 26194 4cycl4dv4e 26196 dfconngra1 26199 wwlknext 26252 clwwlkel 26321 wwlkext2clwwlk 26331 numclwwlkovf2ex 26613 ordtrest2NEW 29297 subfacp1lem3 30418 subfacp1lem5 30420 erdszelem8 30434 hfext 31460 finixpnum 32564 lindsenlbs 32574 poimirlem26 32605 poimirlem27 32606 poimirlem32 32611 prdsbnd 32762 rrnequiv 32804 hdmap14lem13 36190 pfxsuffeqwrdeq 40269 1wlkp1lem8 40889 pthdlem1 40972 crctcsh1wlkn0lem7 41019 wwlksnext 41099 clwwlksel 41221 wwlksext2clwwlk 41231 31wlkdlem4 41329 3pthdlem1 41331 upgr4cycl4dv4e 41352 dfconngr1 41355 av-numclwwlkovf2ex 41517 |
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