Definitions
Learnin' Logic
with Some Bars
Something's
Missing
Am I Valid?
Philosophers
100

The disposition (or location) of terms in the premises.

What is figure?

100

The mnemonic device word for the syllogism in which both premises and the conclusion are "A" statements.

What is BARBARA?

100

The three kinds of enthymemes.

What are the First Order, Second Order, and Third Order?

100

The two valid moods of conditional syllogisms.

What are Modus Ponens and Modus Tollens?

100

The two types of sorites.

What are Aristotelian and Goclenian?

200

The disposition of the premises according to quantity and quality.

What is mood?

200

Figure of a CAMESTRES syllogism.

What is 2nd figure?

200

The order of this enthymeme:

John is an atheist.

Therefore, John disbelieves in God.

What is the First Order?

200

The invalid moods of disjunctive syllogisms.

What is Ponendo Tollens?

200

Providing the missing conclusions in a sorites.

What is extrapolation?

300

A syllogism that does not contain both of the necessary premises - or contains both of its premises but is missing a conclusion.

What is enthymeme?

300

Mnemonic device word for the following syllogism:

All roses are flowers.

No flowers are trees.

Therefore, no trees are roses.

What is CAMENES?

300

The missing premise of this enthymeme:

John is an atheist.

Therefore, John disbelieves in God.

What is "Atheists disbelieve in God."?

300

The validity of a sorites depends on this.

What is the validity of its component parts?

300

The name of this sorites:

All A is B

All B is C

All C is D

All D is E

Therefore, all A is E

What is Aristotelian Sorites?

400

The 3 kinds of hypothetical syllogisms.

What are the conditional, the disjunctive, and the conjunctive?

400

The syllogisms that reduce to DARII.

What are DARAPTI, DISAMIS, DATISI and DIMARIS?

400

The missing premise of this enthymeme:

Greek generals are people who are skilled in battle.

Therefore, Alexander is skilled in battle.

What is "Alexander is a Greek general."?

400

The steps for testing the validity of sorites.

What are:

1. Put into standard form.

2. Provide missing conclusions.

3. Test each resulting syllogism for validity. ?

400

Unites the subject of the last proposition with the predicate of the first and moves from greater extension to lesser extension.

What is Goclenian Sorites?

500

A chain argument which, through a chain of premises, connects the subject of the first premise with the predicate of the conclusion.

What is a sorites?

500

The purpose of the "M" in the syllogism mnemonic device name.

What is transposition of the premises? (Make the minor premise the major, and the major the minor.)

500

The missing conclusion of this enthymeme:

Homework is due on Tuesday.

Today is Tuesday.

What is "Therefore, homework is due today."?

500

The rules for sorites.

What are:

1. Only the premise containing the minor term may be particular.

2. Only the premise containing the major term may be negative. ?

500

The extrapolated form of these first two premises of a sorites with an extrapolated conclusion:

All students of logic are good students.

All good students read this logic book.

What is:

All good students read this logic book.

All students of logic are good students.

Therefore, all students of logic read this logic book.?