Discrete Maths

Let us denote,

P: Sheong Wei is studying discrete maths now.

Q: Sheong wei is playing Ys Origin.

R: Sheong Wei will pass the discrete maths test.

P->R

If Sheong wei is studying discrete maths now, then he will pass the discrete maths test.

P->~R

If Sheong wei is studying discrete maths now, then he will fail the discrete maths test.

PvR

Sheong wei is studying discrete maths now or he is playing Ys Origin.

~Q->R

If sheong wei is not playing Ys Origin , then he will pass the discrete maths test.

(~P^Q)->~R

If sheong wei is not studying discrete maths now and he is playing Ys Origin, then he will not pass the discrete maths test.

Muahahah~~~~~~~~~~~ This is Discrete Maths~~~