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Mirrors > Home > ILE Home > Th. List > 3impd | GIF version |
Description: Importation deduction for triple conjunction. (Contributed by NM, 26-Oct-2006.) |
Ref | Expression |
---|---|
3imp1.1 | ⊢ (𝜑 → (𝜓 → (𝜒 → (𝜃 → 𝜏)))) |
Ref | Expression |
---|---|
3impd | ⊢ (𝜑 → ((𝜓 ∧ 𝜒 ∧ 𝜃) → 𝜏)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3imp1.1 | . . . 4 ⊢ (𝜑 → (𝜓 → (𝜒 → (𝜃 → 𝜏)))) | |
2 | 1 | com4l 84 | . . 3 ⊢ (𝜓 → (𝜒 → (𝜃 → (𝜑 → 𝜏)))) |
3 | 2 | 3imp 1188 | . 2 ⊢ ((𝜓 ∧ 𝜒 ∧ 𝜃) → (𝜑 → 𝜏)) |
4 | 3 | com12 30 | 1 ⊢ (𝜑 → ((𝜓 ∧ 𝜒 ∧ 𝜃) → 𝜏)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ w3a 973 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 |
This theorem depends on definitions: df-bi 116 df-3an 975 |
This theorem is referenced by: 3imp2 1217 3impexp 1430 oprabid 5883 iccid 9871 |
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