Lesson 30
Arguments in which a statement is left assumed are called
enthymemes
Can the assumed statement in an enthymeme be the conclusion?
Yes
The statement after the then is called the
consequent
What is the fallacy called?
If P then Q; Q; Therefore, P
affirming the consequent
You aren't invited to the party, because only eighth-graders are invited. What is the complete syllogism including the assumed premise?
All invited persons are eighth-graders.
(No you are eighth-graders.)
No you are invited persons.
The categorical statement after the if is called the _____, usually abbreviated _____
antecedent, P
Some syllogisms combine hypothetical and categorical statements. These are called _______ hypothetical syllogisms.
mixed
What is the fallacy called?
If P then Q; Not P; Therefore, not Q.
denying the antecedent
I have sinned, for I have betrayed innocent blood. What's the syllogism including assumed premise?
All I am an innocent-blood betrayer.
(All innocent-blood betrayers are sinners.)
All I am a sinner.
A _______ is a statement that affirms an outcome based on a condition. It has the form ________
hypothetical, If P then Q.
If P then Q; P; Therefore, Q. What is the form called?
modus ponens
major premise, minor premise, conclusion.
He who receives you receives me, and he who receives me receives the one who sent me. What is a complete syllogism including assumed premise.
People who receive you are people who receive me
People who receive me are people who receive the one who sent me.
(People who receive you are people who receive the one who sent me.)
A ______ hypothetical syllogism is an argument that uses only hypothetical statements.
pure
If P then Q; Not Q; Therefore, not P. What is the form called?
modus tollns