Expert: Vishwas K Hajirnis - 9/14/2006

Question
can u give me an example of the two types of laws please. i need help.

Answer
Law of Detachment ( also known as Modus Ponens (MP) ) says that if p=>q is true and p is true, then q must be true.

example:
If an angle is obtuse, then it cannot be acute.
Angle A is obtuse.
Therefore
Angle A cannot be acute.

The Law of Syllogism ( also called the Law of Transitivity ) states:
if p=>q and q=>r are both true, then p=>r is true.
example:

If the electric power is cut, then the refrigerator does not work.
If the refrigerator does not work, then the food is spoiled.
So if the electric power is cut, then the food is spoiled.