A mathematical sentence is the analogue of an English sentence; it is a correct arrangement of mathematical symbols that states a complete thought.
It makes sense to ask about the TRUTH of a sentence: Is it true? Is it false? Is it sometimes true/sometimes false?

Example 4: 2+3 expression Is this true or false or sometimes true/sometimes faise? Solution: This sentence is true since 2+3 is (always) equal to 5.


Example 5: 2+3> 6 is this true or false or sometimes true/sometimes false?​