(logic) A fallacy whose error cannot be represented by the symbols used in formal logic.

That branch of logic whose task is to develop non-formal standards, criteria, procedures for the analysis, interpretation, evaluation, criticism and construction of argumentation in everyday discourse.

partly informal, neither formal nor informal, semi-formal.

plural of informal fallacy

plural of informal logic

(taxonomy) Sometimes used to indicate that a formerly accepted taxonomic group is considered not to be paraphyletic or polyphyletic

(US, law, finance) Information obtained by or from a person in a position of trust (a director, an employee, a consultant) that affects the price of publicly traded securities.

(mathematics) A branch of applied mathematics and engineering involving the quantification of information sent over a communication channel, disregarding the meaning of the sent messages, exemplified by the noisy-channel coding theorem.

The process of creating information model.

An abstract but formal representation of entities including their properties, relationships and the operations that can be performed on them.