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Mirrors > Home > ILE Home > Th. List > rgen2 | GIF version |
Description: Generalization rule for restricted quantification. (Contributed by NM, 30-May-1999.) |
Ref | Expression |
---|---|
rgen2.1 | ⊢ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) → 𝜑) |
Ref | Expression |
---|---|
rgen2 | ⊢ ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜑 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rgen2.1 | . . 3 ⊢ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) → 𝜑) | |
2 | 1 | ralrimiva 2503 | . 2 ⊢ (𝑥 ∈ 𝐴 → ∀𝑦 ∈ 𝐵 𝜑) |
3 | 2 | rgen 2483 | 1 ⊢ ∀𝑥 ∈ 𝐴 ∀𝑦 ∈ 𝐵 𝜑 |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 103 ∈ wcel 1480 ∀wral 2414 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-5 1423 ax-gen 1425 ax-4 1487 ax-17 1506 |
This theorem depends on definitions: df-bi 116 df-nf 1437 df-ral 2419 |
This theorem is referenced by: rgen3 2517 f1stres 6050 f2ndres 6051 exmidonfinlem 7042 divfnzn 9406 txuni2 12414 divcnap 12713 abscncf 12730 recncf 12731 imcncf 12732 cjcncf 12733 |
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