Proposition or statement and Truth Value of a statement

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A declarative sentence which is true or false but not both is called a proposition.

Example:

  • Sun rises in the west.
  • 6<9
  • 2+3 = 7

Truth value of a statement

Truth value is the truthfulness of statement. If a statement is true its truth value is T, if a statement is false then its truth value is F.

In the above examples, truth values are (i) F (ii) T (iii) F.

Note:

Propositions are usually denoted by p, q, r, s etc.

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