Description: An importation inference. (Contributed by NM, 26-Apr-1994)
Ref | Expression | ||
---|---|---|---|
Hypothesis | imp31.1 | ⊢ ( 𝜑 → ( 𝜓 → ( 𝜒 → 𝜃 ) ) ) | |
Assertion | imp32 | ⊢ ( ( 𝜑 ∧ ( 𝜓 ∧ 𝜒 ) ) → 𝜃 ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | imp31.1 | ⊢ ( 𝜑 → ( 𝜓 → ( 𝜒 → 𝜃 ) ) ) | |
2 | 1 | impd | ⊢ ( 𝜑 → ( ( 𝜓 ∧ 𝜒 ) → 𝜃 ) ) |
3 | 2 | imp | ⊢ ( ( 𝜑 ∧ ( 𝜓 ∧ 𝜒 ) ) → 𝜃 ) |