Description: Given (((a and b) and c) and d), there exists a proof for d. (Contributed by Jarvin Udandy, 3-Sep-2016)
Ref | Expression | ||
---|---|---|---|
Hypothesis | abcdtd.1 | ⊢ ( ( ( 𝜑 ∧ 𝜓 ) ∧ 𝜒 ) ∧ 𝜃 ) | |
Assertion | abcdtd | ⊢ 𝜃 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | abcdtd.1 | ⊢ ( ( ( 𝜑 ∧ 𝜓 ) ∧ 𝜒 ) ∧ 𝜃 ) | |
2 | 1 | simpri | ⊢ 𝜃 |