darkSpyro

This is a pretty dumb question actually, because logic is not a subjective thing.

Logic is three things:

- Deductive reasoning
Reasoning from one or more general statements to reach a logically valid conclusion.

Example:
Statement 1 - All Ferraris are red.
Statement 2 - Joe's car is a Ferrari.
Conclusion - Joe's car is red.

If the statements are both valid, the conclusion is valid.

- Inductive reasoning
Reasoning in which the premises seek to supply evidence for the truth of the conclusion.

Example:
Statement 1 - All Ferraris are red.
Statement 2 - Joe's car is red.
Conclusion - Joe's car is assumed to be a Ferrari.

The conclusion is only probable, but still entirely logical.

- Abductive reasoning
Using existing conclusions to generate an hypothesis about unknown events

Example
Unknown event - Joe's car is a black ferrari.
Existing conclusion - Cars can be painted black.
Hyphothesis - Joe's Ferrari has been painted black.

This hypothesis is also just probable, but still entirely logical.

Note that a statement or a conclusion can be logical, but still not valid.

Example

Statement 1 - People who live near the equator have darker skin.
Statement 2 - People who live away from the equator have lighter skin.
Conclusion - It is assumed that the equator causes dark skin color.

The conclusion is logical, but not valid. The conclusion is still logical even when we know what really causes variations in skin color, and it has nothing to do with it's validity.

Does this answer your question?