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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 124 | 1 ⊢ ((𝜑 ∧ 𝜒) → 𝜓) | 
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