Homework 09

Read: Beginning of Section 2.5.

Turn in: 2.72(c,d,e,f), 2.73, 2.75, 2.77, 2.78

• Please read Theorem 2.76 very carefully—it’s extremely important.
• For 2.77 and 2.78, the intention is for you to negate each sentence, using 2.76 to simplify the negation as much as possible.

Extra practice: 2.76