is the process of reasoning
from the general to the specific. Deductive reasoning is supported by deductive logic, for example:
From general propositions:
- All ravens are black birds.
- For every action, there is an equal and opposite re-action
To specific propositions such as:
- This bird is black, therefore it is a raven.
- This billiard ball will move when struck with a cue.
In contrast to inductive reasoning, the conclusions of deductive reasoning are as valid as the initial assumption.
Deductive reasoning was first described by the ancient Greek philosophers such as Aristotle.
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