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Mirrors > Home > ILE Home > Th. List > ralun | GIF version |
Description: Restricted quantification over union. (Contributed by Jeff Madsen, 2-Sep-2009.) |
Ref | Expression |
---|---|
ralun | ⊢ ((∀𝑥 ∈ 𝐴 𝜑 ∧ ∀𝑥 ∈ 𝐵 𝜑) → ∀𝑥 ∈ (𝐴 ∪ 𝐵)𝜑) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ralunb 3340 | . 2 ⊢ (∀𝑥 ∈ (𝐴 ∪ 𝐵)𝜑 ↔ (∀𝑥 ∈ 𝐴 𝜑 ∧ ∀𝑥 ∈ 𝐵 𝜑)) | |
2 | 1 | biimpri 133 | 1 ⊢ ((∀𝑥 ∈ 𝐴 𝜑 ∧ ∀𝑥 ∈ 𝐵 𝜑) → ∀𝑥 ∈ (𝐴 ∪ 𝐵)𝜑) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 104 ∀wral 2472 ∪ cun 3151 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-ext 2175 |
This theorem depends on definitions: df-bi 117 df-tru 1367 df-nf 1472 df-sb 1774 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ral 2477 df-v 2762 df-un 3157 |
This theorem is referenced by: omsinds 4654 ac6sfi 6954 fimax2gtrilemstep 6956 finomni 7199 uzsinds 10515 iseqf1olemqk 10578 seq3f1olemstep 10585 fimaxre2 11370 modfsummod 11601 |
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