Comprehension and extension are two properties of terms.
The three ways terms can be divided according to their signification are univocal, equivocal and analogous.
The term photosynthesis is an example of an equivocal term.
Univocal terms always mean the same thing.
Equivocal terms have related meanings.
Analogous terms have entirely different and unrelated meanings.
The term 'jar' is an example of an equivocal term.
The term 'window' is an example of an equivocal term.
Equivocal terms are used in puns.
Many analogous terms are scientific terms.
The three ways to divide up terms according to their signification is into verbal, mental and real existence.
Material supposition occurs when a term refers to something that exists in the real world.
When a term refers to real existence, it is said to be an instance of material supposition.
When a term refers to mental existences, it is said to be an instance of logical supposition.
In the sentence, “Man was created by God” the term man is an example of real supposition.
The three aspects of logic are simple apprehension, judgment and deductive inference.