Math Is Fun Forum

uni_student

Member

Registered: 2008-04-26

Posts: 2

discrete maths help

i have 2 question and i hope to get answers plz :

1- in computer programming the "if-then-else" statement is used. Given that P,Q and R are statements 
how can we translate the sentence from "if P then Q else R" into proportional logic???

2- how can we formulate the symbolic expression in words using:
p: today is monday
q: it is raining
r: it is not

thanks lot

John E. Franklin

Member

Registered: 2005-08-29

Posts: 3,588

Re: discrete maths help

Are you looking for a tautology with no time sequence like:
P XNOR Q XNOR not R, where XNOR means Equivalence binary operator.

or are you looking for a time sequence
or sequential logic statement like a computer program?

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igloo myrtilles fourmis

uni_student

Member

Registered: 2008-04-26

Posts: 2

Re: discrete maths help

Are you looking for a tautology with no time sequence like:
P XNOR Q XNOR not R, where XNOR means Equivalence binary operator.

or are you looking for a time sequence
or sequential logic statement like a computer program?

i need a tautology or a sequential logic statement

luca-deltodesco

Member

Registered: 2006-05-05

Posts: 1,470

Re: discrete maths help

if today is monday, it is raining, if not it is not raining.

or perhaps

it is only raining if it is monday

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