The tutor comments on constructions for making assertions.

A syllogism is the familiar structure:

1. Horses have four legs.
2. Bessie is a horse.
3. Bessie must have four legs.

Sometimes, step 1 or 2 is left out. The resulting assertion is an enthymeme:

1. Susie runs marathons.
2. Susie must be in good shape.

The missing statement, “Marathon runners have to be in good shape,” is assumed obvious.

Enthymemes are often used in humour:

1. Joe is a professional student.
2. He must love Kraft Dinner.

Source:

Hodges, Horner et al. Harbrace Handbook for Canadians. Scarborough: Nelson Education, 2003.

Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.