How do I symbolize a disjunction?

2.3.4 Disjunction - 2.3.5 Exercises
In this video we see how disjunctions get symbolized, especially with conjunctions and negations added.

For this video: Read 2.3.4 Disjunction; Do 2.3.5 Exercises (pp. 36-37)
For next video: Read 2.3.6 Conditional - 2.3.7 Biconditional (p. 37)