A Priori/Examples/Legal

Example of Use of A Priori
The following is an example of  reasoning:
 * If Fred Bloggs has committed a crime, then he is guilty.

The truth of the above statement is dependent upon the definition of the term guilty, which, in natural language simply means having committed a crime.

Contrast this with:
 * Fred Bloggs has committed the crime of usury

the truth value of which is dependent upon knowing whether or not he actually did it.