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"contrapositive" refers to negating the terms of a statement and reversing the direction of inference. It is used in proofs. An example makes it easier to understand: "if A is an integer, then it is a rational number". The contrapositive would be "if A is not a rational number, then it cannot be an integer". The general form, then, given "if A, then B", is "if not B, then not A". Proving the contrapositive generally proves the original statement as well.

Q: What does the word contrapositive mean in math?

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its mean like well its a math term its like distrubed fractions

The word "mean" in math means the same thing as average. Mean is just a nickname for average.

in math terms reduce means to simplify

Approximately.

The word increased in a math problem means you are adding to terms or numbers.

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A contrapositive means that if a statement is true, than the characteristics also pertains to the other variable as well.

The word contrapositive is a noun. The plural noun is contrapositives.

The statement "All red objects have color" can be expressed as " If an object is red, it has a color. The contrapositive is "If an object does not have color, then it is not red."

what does key mean in math

about

a

Approximately

I do not know of such a word related to math(s)

There is no such math word, so it does not mean anything. You may wish to check your spelling before posting questions!

the word by means 'times' or 'multiply'

The word at means the least

If p->q, then the law of the contrapositive is that not q -> not p