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Related theorems GIF version |
| Description: Deduction adding conjuncts to an antecedent. |
| 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 389 | . 2 ⊢ ((φ ⋀ θ) → χ) |
| 3 | 2 | 3adant2 804 | 1 ⊢ ((φ ⋀ ψ ⋀ θ) → χ) |