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Mirrors > Home > ILE Home > Th. List > adantr | GIF version |
Description: Inference adding a conjunct to the right of an antecedent. (Contributed by NM, 30-Aug-1993.) |
Ref | Expression |
---|---|
adantr.1 | ⊢ (𝜑 → 𝜓) |
Ref | Expression |
---|---|
adantr | ⊢ ((𝜑 ∧ 𝜒) → 𝜓) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | adantr.1 | . . 3 ⊢ (𝜑 → 𝜓) | |
2 | 1 | a1d 22 | . 2 ⊢ (𝜑 → (𝜒 → 𝜓)) |
3 | 2 | imp 123 | 1 ⊢ ((𝜑 ∧ 𝜒) → 𝜓) |
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