Question

Complete the following direct proof:

1) Bats are the only mammals that can fly.
2) The mammal is flying.
3) ______________

A. Birds can fly.
B. The mammal is a bat.
C. The animal cannot fly.
D. The bat is flying.

Answer 1

@blurbendy is b correct

Answer 2

or am i wrorng

Answer 3

I was torn between B and D, but I think it is B.

Answer 4

Well
Try to eliminate the obvious
A isnt correct because it is irrelavant to everything, it isnt even a mammal
C also doesnt work, because the animal can fly, as it says there in the second line

So just to work it out, lets turn the statement into a conditional
p implies q
so:
If a mammal can fly, then it is a bat.
the second line is proving p
So the third line would prove q
p = mammal that can fly
q = is a bat
So if you were proving q
Which one would you put?

Answer 5

camerondoherty has a better explanation :)

Answer 6

cx
C:

Answer 7

thank you guys so much

Answer 8

Glad to help C: