PROPOSITION

proposition definition

PROPOSITION:

   Proposition is a sentence which describe a fact and  give a result weather the result is true or false but here is a condition applied that the given sentence should give a result. If the sentence isn’t give any result then it can be a sentence but couldn’t be a proposition.

Example:

1.       Washington is the capital of America.

2.       Torento is the city of Pakistan.

3.       2+2=4

4.       2+3=6

  In the above given examples all have a result that may be true or false in which 1 and 3 is true and 2 and 4 is false. Let some another example which is sentence but not proposition.

Example:

      1.       What is the capital of America?

proposition math

      2.       Read the book carefully.

      3.       X+y=z

      4.       2+x=4

  Here the following given example doesn’t make any result but all examples are sentence.

Any answer of question can be considered as proposition because answers make a result.

COMPOUND PROPOSITION:

Collection of two or more proposition called compound proposition.

Example:

Tomorrow is Sunday, and Sunday is a holiday.

  In above sentence there are two propositions that is tomorrow is Sunday and second is Sunday is a holiday, both make result that is true.

logical operations of proposition: 

   Goto the math label