The Archives

Sayanee's blog 2005 - 2012. Checkout her latest blog!

Conditional Statements

10 Sep 2008 on learning

How should we tackle sentences with the following structure: "If X, then Y" This simple logic statement can be seen as 2 parts:

  1. Xis the hypothesis/premise/evidence
  2. Y is the conclusion

At any time, 4 situations can happen:

  1. X is true - If X is true, then Y is true
  2. Y is true - If Y is true, we know nothing about X
  3. X is false - If X is false, we know nothing about Y
  4. Y is false - If Y is false, then X is also false (contra positive)