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Mirrors > Home > MPE Home > Th. List > 3adant2 | Structured version Visualization version GIF version |
Description: Deduction adding a conjunct to antecedent. (Contributed by NM, 16-Jul-1995.) |
Ref | Expression |
---|---|
3adant.1 | ⊢ ((𝜑 ∧ 𝜓) → 𝜒) |
Ref | Expression |
---|---|
3adant2 | ⊢ ((𝜑 ∧ 𝜃 ∧ 𝜓) → 𝜒) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3adant.1 | . . 3 ⊢ ((𝜑 ∧ 𝜓) → 𝜒) | |
2 | 1 | adantlr 712 | . 2 ⊢ (((𝜑 ∧ 𝜃) ∧ 𝜓) → 𝜒) |
3 | 2 | 3impa 1109 | 1 ⊢ ((𝜑 ∧ 𝜃 ∧ 𝜓) → 𝜒) |
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