Question

) What is the first step in proving the following statment true using proof by contradiction?

√2 is an irrational number.

A.
Show that √2 is rational.
B.
Show that √2 is even.
C.
Assume that √2 is a nonterminating decimal.
D.
Assume that √2 is rational.

Answer 1

d

Answer 2

why D

Answer 3

it is conradiction

Answer 4

Given: p is true
Prove: p → q is true
Assume ~q is true. Then ~q → r, and r → s. Since s → ~p, ~q → ~p by the law of syllogism. Therefore, p → q is true.

What type of proof is illustrated above?

A.
proof by contradiction
B.
proof by contraposition
C.
proof by law of detachment
D.
proof by law of syllogism

Answer 5

@CGGURUMANJUNATH can you help me out on this one