Consider the following sentences: a. If an animal has feathers then it flies. b. If an animal flies and lays eggs then it is a bird. c. Tracy is an animal that has feathers and lays eggs. Prove by...

Consider the following sentences:

a.If an animal hasfeathersthen it flies.

b.If an animal flies and layseggsthen it is a bird.

c.Tracy is an animal that has feathers and lays eggs.

Prove bynatural deduction (proof tree) thatTracy is a bird.

Prove byresolution thatTracy is a bird.