Problem 3.1: State the inverse, converse, and contrapositive of the following statement.

p: If the worker is injured, then the family sues. [Solution]

Problem 3.2: State the inverse, converse, and contrapositive of the following statement.

p: If the enemy retreats, the general will pursue them. [Solution]

Problem 3.3: Given the following statement, decide its truth value, and then decide the truth values of its inverse, converse, and contrapositive.

p: If a polygon has four sides, it is a pentagon. [Solution]

Problem 3.4: Given the following statement, decide its truth value, and then decide the truth values of its inverse, converse, and contrapositive.

p: If a triangle is obtuse, then it has one obtuse angle. [Solution]

Problem 3.5: Given the following statement, decide its truth value, and then decide the truth values of its inverse, converse, and contrapositive.

p: If two triangles are congruent, then they are similar. [Solution]