Types of knowledge Main characteristics Descriptions
Definitional Knowledge Kclm = Kprv, Kinf ≠ ∅ Knowledge due to the uncontroversial definition of ideas or concepts
Deductive Knowledge KclmKprv, Kinf = Deduction, Kprv are some pieces of definitional knowledge Knowledge due to the deduction among ideas or relations of ideas having the categories called primary relations of ideas and secondary relations of ideas
Inductive Knowledge KclmKprv and Kinf = Induction, Kprv consists of some pieces of data and/or observations Knowledge due to the induction of experience or data having the categories called informal induction-based knowledge, relations-of-ideas assisted inductive knowledge, and complex induction-based knowledge
Creative Knowledge Kprv = ∅ and Kinf = Abduction (most likely) Knowledge due to creative activities or pragmatic preferences having the categories called analytic a priori-based creative knowledge, synthetic a priori-based creative knowledge, and synthetic a postariori-based creative knowledge