Lesson 8: Hypothetical Syllogism Flashcards
One wherein the major premise is a hypothetical proposition and the minor premise and conclusion are categorical propositions
Hypothetical Syllogism
T or F: Hypothetical syllogisms are invalid argument forms in logic
False teh
A syllogism whose major premise is a conditional proposition
Conditional Syllogism
Two parts of conditional syllogism
Antecedent and consequent
Parts of Conditional Syllogism
States the condition
Antecedent
Parts of Conditional Syllogism
Result which follows from the antecedent
Consequent
Rules in Conditional Syllogism
Affirm the antecedent, affirm the consequent
Modus Ponens
Rules in Conditional Syllogism
Deny the consequent, deny the antecedent
Modus Tollens
When can we say that the conditional syllogism is invalid?
Tatlo ‘to, beh.
- If there is no connection between the antecedent and the consequent
- If the consequent is affirmed first before the antecedent
- If the antecedent is denied first before the consequent
It is a binary connective with the use of disjunctive words of natural language like or
Disjunctive Syllogism
Rules in Disjunctive Syllogism
Affirm the first choice, deny the conclusion
Modus Ponendo Tollens
Rules in Disjunctive Syllogism
Deny the first choice, affirm the conclusion
Modus Tollendo Ponens
The components are connected by truth-functional operator and
Conjunctive Syllogism
The only accepted rule in Conjunctive Syllogism?
Modus Ponendo Tollens