1. The advent of modern percussion added new dimensions to the a cappella genre and has become very widespread in vocal arrangements .
2. The advent of modern percussion added new dimensions to the a cappella genre and has become very prevalent in vocal arrangements .

yes

1. He received both his first Bachelor 's degree and his Bachelor 's degree from Abilene Christian University in the mid 1950 's .
2. He received both his first bachelor 's degree and his undergraduate master 's degree from Abilene Christian University in the mid 1950 's .

yes

1. Where formula _ 11 is the natural inclusion over the first factor and formula _ 12 is the natural projection over the second factor .
2. Where Formula 11 is the natural integration over the natural factor and Formula 12 is the first projection on the second factor .
no