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what form of deductive reasoning is used in this argument?

If a triangle is scalene, it has no sides the same length.
If a triangle has no sides the same length, then it isn't quadrilateral.
If a triangle is scalene, then it isn't quadrilateral

A. law of detachment
B. law of syllogism
C. Law of contrapositive
D. law of converse
F. identification of counterexample​


Sagot :

The form of deductive reasoning used in the argument is the law of syllogism.

Deductive reasoning is logical reasoning that entails drawing one or more premises (factual statements) via a logical conclusion.

The Law of detachment asserts that if x → y; and x is true, then y is true.

The Law of syllogism is a type of deductive reasoning that occurs in three forms with a frequent term that occurs in the premise (here: triangle) but not in conclusion.

This is a striking feature that differentiates it from other forms of deductive reasoning.

Therefore, we can conclude that the form of deductive reasoning used in the argument is the law of syllogism.

Learn more about deductive reasoning here:

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