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| Mirrors > Home > ILE Home > Th. List > el2v | GIF version | ||
| Description: If a proposition is implied by 𝑥 ∈ V and 𝑦 ∈ V (which is true, see vex 2824), then it is true. (Contributed by Peter Mazsa, 13-Oct-2018.) |
| Ref | Expression |
|---|---|
| el2v.1 | ⊢ ((𝑥 ∈ V ∧ 𝑦 ∈ V) → 𝜑) |
| Ref | Expression |
|---|---|
| el2v | ⊢ 𝜑 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vex 2824 | . 2 ⊢ 𝑥 ∈ V | |
| 2 | vex 2824 | . 2 ⊢ 𝑦 ∈ V | |
| 3 | el2v.1 | . 2 ⊢ ((𝑥 ∈ V ∧ 𝑦 ∈ V) → 𝜑) | |
| 4 | 1, 2, 3 | mp2an 430 | 1 ⊢ 𝜑 |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ∈ wcel 2209 Vcvv 2821 |
| 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-5 1500 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-ext 2220 |
| This theorem depends on definitions: df-bi 117 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-v 2823 |
| This theorem is referenced by: en2prde 7529 upgr1een 16279 |
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