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Mirrors > Home > ILE Home > Th. List > 3ad2ant1 | GIF version |
Description: Deduction adding conjuncts to an antecedent. (Contributed by NM, 21-Apr-2005.) |
Ref | Expression |
---|---|
3ad2ant.1 | ⊢ (𝜑 → 𝜒) |
Ref | Expression |
---|---|
3ad2ant1 | ⊢ ((𝜑 ∧ 𝜓 ∧ 𝜃) → 𝜒) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3ad2ant.1 | . . 3 ⊢ (𝜑 → 𝜒) | |
2 | 1 | adantr 274 | . 2 ⊢ ((𝜑 ∧ 𝜃) → 𝜒) |
3 | 2 | 3adant2 1006 | 1 ⊢ ((𝜑 ∧ 𝜓 ∧ 𝜃) → 𝜒) |
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