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What does contrapositive mean?

Updated: 4/28/2022
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15y ago

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It is the opposite of a statement...kinda... It is used in if then statements. Let me explain: Statement: If cardinals are red, then a dog is a cardinal. The contrapositive of that statement would be: If a dog is not a cardinal, then it is not red. Notice how you switch the order of if and then in the sentence. Then you insert the nots. To make the sentence true of false. I took geometry a while ago, sot his may not be accurate, but I hoped it helped!

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Q: What does contrapositive mean?
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Related questions

What does contrapositive of a statement mean?

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 the word contrapositive mean in math?

"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.


What is the law of contrapositive?

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


What part of speech is the word contrapositive?

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


Is a contrapositive statement true?

If a conditional statement is true, then so is its contrapositive. (And if its contrapositive is not true, then the statement is not true).


What is the converse of the inverse of the conditional of the contrapositive?

The converse of an inverse is the contrapositive, which is logically equivalent to the original conditional.


What is the contrapositive of the statement if it is an equilateral triangle then it is an isosceles triangle?

The contrapositive would be: If it is not an isosceles triangle then it is not an equilateral triangle.


Inverse Converse contrapositive?

The inverse of a conditional statement switches the hypothesis and conclusion. The converse of a conditional statement switches the hypothesis and conclusion. The contrapositive of a conditional statement switches and negates the hypothesis and conclusion.


What is the contrapositive of if a figure has three sides it is a triangle?

If a figure is not a triangle then it does not have three sides ,is the contrapositive of the statement given in the question.


What is contrapositive in math?

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


What is converse inverse and contrapositive?

if the statement is : if p then q converse: if q then p inverse: if not p then not q contrapositive: if not q then not


A is the negation and interchanging of the hypothesis and conclusion?

Contrapositive