Concepts, Judgments and Reasoning | The Logical Principles of Judgments and Arguments | The Syllogism in Classical Logic | Fallacies | Modern Logic and its Symbolic Language |
---|---|---|---|---|
Means to conceive, comes from Latin, conceptum
Concept
|
The words and statements of our inferences must have the same and unique meaning throughout them. Affirms that what is, is.
Principle of Identity
|
I: Some S is P
Affirmative Particular
|
What does the fallacy "Attack to the person" consists in?
Referring to any condition of the person who issues an opinion and ignoring the content of what the person says.
|
What is quantificational logic?
This logic focuses on the relationships between a quantity and the propositions, distinguishing between individuals and their predicates.
|
The formation of concepts is done through a process called:
Abstraction
|
What is deductive inference?
It leads to necessary conclusions, of specific cases. The opposite of the inductive inference.
|
A: All S is P
Universal Affirmative
|
"Everyone in my town thinks that raising animals to fight is not immoral." This is an example of what type of fallacy?
Appeal to Popularity. (argumentum ad populum)
|
True or False: The language used in modern logic is artificial.
True
|
All the mental process that occurs due to intellect and rationality.
Thought
|
What is inductive inference?
It starts from various observations made about the same fact or object, so the conclusion is a statement that can be generalized to all cases that share the properties observed so far.
|
O: Some S is not P
Negative Particular
|
What is false generalization?
Generalizing from very few observed cases.
|
What is propositional logic?
This logic deals with analyzing formally valid reasoning based on their propositions.
|
Intellectual capacity that is responsible for interrelate different views to solve problems.
Reasoning
|
It tells us that by having two statements that contradict each other, necessarily one of them must be false and the other one true.
Principle of Excluded Middle (Third Excluded)
|
E: All S is not P
Universal Negative
|
This fallacy consists of the use of force-physical or verbal- to impose a vision or opinion.
Appeal to Force. (argumentum ad baculum)
|
What is class logic?
This logic focuses on indicating the belonging or non-belonging of an element within a set, according to the properties it shares with it.
|
Is a complex mental operation that enunciates the relationship that exists between two or more concepts.
Judgement
|
To decide that a premise is true or false, it is necessary to have reasons to support such decision. It is necessary to have foundations, based on other knowledge or reasons already demonstrated.
Principle of Sufficient Reason
|
What serves as a comparison between both premises, however, it doesn't go in the conclusion.
Middle Term (M)
|
This fallacy occurs when an idea or argument is not analyzed but is taken for granted as correct and valid for having been issued by a person or institution with a supposed recognition on the subject.
Appeal to Authority. (ad verecundiam)
|
Who were the developers of the modern logic?
George Boole and Augustus De Morgan
|