Rules from Chapter 13
Rules that have to do with the quality of the statement in a syllogism...
What are qualitative rules?
definition of logic
What is "The science of right thinking"?
the mental act whose verbal expression is a proposition
What is judgment?
rule of two statements are contradictory if they differ in both quality and quantity
What is the Rule of Contradiction?
The verbal expression of a deductive inference
What is syllogism?
rules have to do with how terms are arranged in a syllogism
What are terminological rules?
logic concerned with the content of argumentation
What is material logic?
has to do with whether a statement is affirmative or negative
What is quality?
law of two contradictory statements cannot both be true at the same time, nor can they both be false at the same time
What is the First Law of Opposition?
This law says "if the antecedent is true, the consequent must also be true"
What is The Essential Law of Argumentation?
rules that have to do with the quantity of the statements in the syllogism
What are quantitative rules?
logic interested in the form or structure of reasoning
What is Formal logic?
has to do with whether a proposition is universal or particular
What is quantity?
rule of two statements are contrary if they are both universal but differ in quality
What is Rule of Contraries?
the act by which the mind established a connection between the antecedent and the consequent
What is deductive inference?
rule if the premises are affirmative, the conclusion must also be affirmative
What is rule VI?
when a conclusion follows logically from its premises
What is a valid argument?
a sentence or statement which expresses truth or falsity
What is proposition?
rule of two statements are both particular statements that differ in quality
What is the Rule of Subcontraries?
the two forms of Fallacy of Illicit Process
What are Fallacy of Illicit Major and Fallacy of Illicit Minor?
if you break this rule, you commit the Fallacy of Drawing and Affirmative Conclusion from a Negative Premise
What is Rule VII?
significance and supposition
What are the two properties of the term
the three elements of any proposition
What are the subject term, the predicate term, and the copula?
law of two subcontraries may at the same time be true, but cannot at the same time be false
What is the Third Law of Opposition?
The four principles that are fundamental to all logical though
What are the Principle of Reciprocal Identity, the Principle of Reciprocal Non-Identity, the Dictum de Omni, and the Dictum de Nullo