General Mathematics Gen Math is Love | Page 3

E –> I Given

Granted that England will go to the party, Ian will also attend the party. If England’ s presence implies that he will drink at the party, then either he forgets or Ian attends the party. England will drink at the party if both he and Ian will attend the party. England does not forget. Therefore, Ian will attend the party.

( E –> D)- >( F- > I)

Given

( E ^ I)- > D

Given

~ F

Given

Show: I

E- >( E^I)

1, Abs

E- > D

1,5,3 HS

E- England D – Drink I – Ian

F – Forget

F^I I

2,6 MP 7,4 DS