CONCEPTS OF THE FIRST AND SECOND INTENTION
Intention refers to the act of the mind as representing reality.
1. FIRST INTENTION. A concept presenting the nature or quality of a thing in itself.
Example: Man is a corporeal substance.
2. SECOND INTENTION. A concept which presents the mode of manner how the mind understands such nature or quality as a logical reality.
Example: Man is a species.
CONCRETE AND ABSTRACT CONCEPTS
1. CONCRETE CONCEPT. Signifies a nature or quality as found residing in an individual or subject.
Example: animal, dog, chair, friend
2. ABSTRACT CONCEPT. Signifies a nature or quality as though it exists on its own right and apart from the individual or subject.
Example: friendship, freedom, royalty
CONCEPT ACCORDING TO COMPREHENSION
1. SIMPLE. Expresses a single aspect or feature of a thing such as, being, essence, action, potentiality.
COMPOUND. Expresses several aspects or features of a thing such as: man, Filipino, philosopher, society, etcetera.
2. ABSOLUTE. Expresses a thing existing as a substance or as though it were a substance – the nature of a thing capable of existing on its own and of supporting the attributes belonging to such nature.
Example: man, animal, sun, God
CONNOTATIVE. Signifies not a substance, but a quality or feature inhering in, and, therefore, implying a substance. Example: strong, long, rider, beautiful
CONCEPTS ACCORDING TO EXTENSION
1. SINGULAR. Signifies one specific individual.
Example: My father, his teacher in Logic
2. UNIVERSAL. Signifies all the individuals within the extension of such concept and expressed verbally with the quantifiers “all”, “each”, and “every”.
Example: each one, all students, nobody
3. PARTICULAR. Signifies but a part or portion of the total extension of such