By dragging statements from the left column to the right column below, construct a valide proof of the statement: For all integers n, if 9n is even, then n is even. The correct proof will use 3 of the statements below.

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Author:Erwin Kreyszig
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Discrete Math: This is what I have put but they're wrong. Tried it with 9n, n. Still wrong. 

By dragging statements from the left column to the right column below, construct a valide proof of the
statement:
For all integers n, if 9n is even, then n is even.
The correct proof will use 3 of the statements below.
Statements to choose from:
Your Proof: Put chosen statements in order in this column and
press the Submit Answers button.
Since 9 is odd and the product of an
odd number and an even number is
Let n be an arbitrary integer and
even,
assume 9n is even.
Since 9 is odd and the product of odd
Since an even number divided by 9
numbers is odd,
must be even,
9n must be odd.
9n must be even
Let n be an arbitrary integer and
assume n is even.
Let n be an arbitrary integer and
assume n is odd.
n must be even
Transcribed Image Text:By dragging statements from the left column to the right column below, construct a valide proof of the statement: For all integers n, if 9n is even, then n is even. The correct proof will use 3 of the statements below. Statements to choose from: Your Proof: Put chosen statements in order in this column and press the Submit Answers button. Since 9 is odd and the product of an odd number and an even number is Let n be an arbitrary integer and even, assume 9n is even. Since 9 is odd and the product of odd Since an even number divided by 9 numbers is odd, must be even, 9n must be odd. 9n must be even Let n be an arbitrary integer and assume n is even. Let n be an arbitrary integer and assume n is odd. n must be even
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