Conversion
Obversion
Contraposition
Quantity, Quality
Fallacies
100

All Jekyll's are hides (T)

All hides are jekylls (LU)

100

All things that are inside the body are endogenous(T)

No things that are inside the body are exogenous (T)

100

All Boomers are old (T)

All non-old things are non-boomers (T)
100

All owners of pit bull terriers are people who can expect expensive lawsuits.

Change the quality

No owners of pit bull terriers are people who can expect expensive lawsuits.

100

When did you stop cursing children?

Complex Question

200

Some garbage are things that are human (F)

Some things that are human are garbage (F)

200

Some boys are not good (T)

Some boys are evil (T)

200

Some girls are happy (T)

Some non-happy things are non-girls (LU)

200

Some stay-at-home parents are workers who deserve Social Security.

Change the quantity

All stay-at-home parents are workers who deserve Social Security.

200

Stealing is wrong because you shouldn't take thing's away from people.

Begging the question

300

Some prisoners are innocent (T)

Some innocent things are prisoners (T)

300

No dogs are loyal (F)

All dogs are non-loyal creatures (F)

300

Some trees are not things that smell nice(f)

Some non-things that smell nice are trees (LU)
300

Some slumlords are people who eventually wind up in jail.

Change both the quantity and the quality

No slumlords are people who eventually wind up in jail.

300

The Second Amendment to the Constitution states that the right of the people to keep and bear arms shall not be infringed. But a law controlling handguns would infringe the right to keep and bear arms. Therefore, a law controlling handguns would be unconstitutional.

Suppressed Evidence

400

Some non-furry things are not cats (F)

Some cats are not non-furry things (LU)

400

All ghosts are demons (T)

No ghosts are non-demons (T)

400

No cars are gas guzzling (T)

No non-gas guzzling gas are non-cars (LU)

400

All identity thieves are criminals who deserve jail time.

Change the quality and the quantity

Some identity thieves are not criminals who deserve jail time.

400

Man, what a cool ice cube, did you know that ice cube can rap?

Equivocation

500

No students are stupid (T)

No things that are stupid are students (T)

500
Some good things are human (F)

Some good things are not non-human (F)

500

Some things are not real (F)

Some fake things are things (F)

500

No tax proposals that favor the rich are fair proposals.

Change the quality and the quantity

Some tax proposals that favor the rich are fair proposals.

500

Mr. James signed a contract that reads, “In exchange for painting my house, I promise to pay David $5,000 and give him my new Cadillac only if he finishes the job by May 1.” Therefore, since David did not finish until May 10, it follows that he gets neither the $5,000 nor the Cadillac.

Amphiboly