Week's Question

Considering α = (a b), β = (a b c d) e γ = (a c)(b d), chose the FALSE alternative:

1. αγ = (a c d b); 
2. αβ = (a)(b c d); 
3. βα = (a c d)(b); 
4. γα = (a d b c); 
5. NDA 

Author: Moacy Barros Correia da Silva
Translated by : Rafael S. Padilha