Either Ma ’ am Muarip and Sir Aguilar are teaching General Mathematics or their substitutes are . If both of them are , then an Engineering student will observe . But the Education student who majors in math will observe if the substitutes are teaching . Therefore , either the Engineering student or the Math major student will assist .
M – Ma ’ am Muarip A – Sir Aguilar
( M ^ A ) v S
Given
( M ^ A ) - > En
Given
S - > Ed
Given
Show : En v Ed
( M ^ A ) - > En ^ S - > Ed
2,3 Conj
En v Ed
1,4 CD
S - Substitutes
Ed – Education Math Major student En – Engineering Student