Description: Commutation of conjuncts in consequent. (Contributed by Jeff Hankins, 14-Aug-2009)
Ref | Expression | ||
---|---|---|---|
Hypothesis | ancomd.1 | ⊢ ( 𝜑 → ( 𝜓 ∧ 𝜒 ) ) | |
Assertion | ancomd | ⊢ ( 𝜑 → ( 𝜒 ∧ 𝜓 ) ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ancomd.1 | ⊢ ( 𝜑 → ( 𝜓 ∧ 𝜒 ) ) | |
2 | ancom | ⊢ ( ( 𝜓 ∧ 𝜒 ) ↔ ( 𝜒 ∧ 𝜓 ) ) | |
3 | 1 2 | sylib | ⊢ ( 𝜑 → ( 𝜒 ∧ 𝜓 ) ) |