Deductive vs. Inductive Logic

This course is about deductive logic.But it is important to know something

about inductive logic.

Deductive vs. Inductive Logic

This course is about deductive logic.But it is important to know something

about inductive logic.

Deductive logic determines whether the premisessupport the conclusion perfectly.

Deductive vs. Inductive Logic

This course is about deductive logic.But it is important to know something

about inductive logic.

Deductive logic determines whether the premisessupport the conclusion perfectly.

Inductive logic determines the degree to whichthe premises support the conclusion.

Deductive vs. Inductive Logic

Example

The sun rose on day 1.The sun rose on day 2.

:The sun rose today.

So the sun will rise tomorrow.

The argument is not valid.But the premises strongly support the conclusion.

Deductive vs. Inductive Logic

Example

9 of 10 marbles in this bag are black. I have chosen one of them randomly.

So the marble I chose is black.

The argument is not valid.But the premises support 9/10 confidence in the conclusion.

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