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| Mirrors > Home > MPE Home > Th. List > reximi | Structured version Visualization version GIF version | ||
| Description: Inference quantifying both antecedent and consequent. (Contributed by NM, 18-Oct-1996.) |
| Ref | Expression |
|---|---|
| ralimi.1 | ⊢ (𝜑 → 𝜓) |
| Ref | Expression |
|---|---|
| reximi | ⊢ (∃𝑥 ∈ 𝐴 𝜑 → ∃𝑥 ∈ 𝐴 𝜓) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ralimi.1 | . . 3 ⊢ (𝜑 → 𝜓) | |
| 2 | 1 | a1i 11 | . 2 ⊢ (𝑥 ∈ 𝐴 → (𝜑 → 𝜓)) |
| 3 | 2 | reximia 3080 | 1 ⊢ (∃𝑥 ∈ 𝐴 𝜑 → ∃𝑥 ∈ 𝐴 𝜓) |
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