Epistemicism is a position about

vagueness In linguistics and philosophy, a vague predicate is one which gives rise to borderline cases. For example, the English adjective "tall" is vague since it is not clearly true or false for someone of middling height. By contrast, the word "prime" is ...

in the

philosophy of language In analytic philosophy, philosophy of language investigates the nature of language and the relations between language, language users, and the world. Investigations may include inquiry into the nature of meaning, intentionality, reference, ...

metaphysics Metaphysics is the branch of philosophy that studies the fundamental nature of reality, the first principles of being, identity and change, space and time, causality, necessity, and possibility. It includes questions about the nature of conscio ...

, according to which there are facts about the boundaries of a vague predicate which we cannot possibly discover. Given a vague predicate, such as 'is thin' or 'is bald', epistemicists hold that there is some sharp cutoff, dividing cases where a person, for example, is thin from those in which they are not. As a result, a statement such as "Saul is thin" is either true or false. The statement does not, as other theories of vagueness might claim, lack a truth-value – even if the determinate truth-value is beyond our epistemological grasp. Epistemicism gets its name because it holds that there is no

semantic Semantics (from grc, σημαντικός ''sēmantikós'', "significant") is the study of reference, meaning, or truth. The term can be used to refer to subfields of several distinct disciplines, including philosophy, linguistics and comput ...

indeterminacy present in vague terms, only

epistemic Epistemology (; ), or the theory of knowledge, is the branch of philosophy concerned with knowledge. Epistemology is considered a major subfield of philosophy, along with other major subfields such as ethics, logic, and metaphysics. Episte ...

uncertainty. Epistemicism was historically considered an untenable position, since it requires vague terms to possess extremely specific conditions of application. Since the publication of

Timothy Williamson Timothy Williamson (born 1955) is a British philosopher whose main research interests are in philosophical logic, philosophy of language, epistemology and metaphysics. He is the Wykeham Professor of Logic at the University of Oxford, and fell ...

's 1994 book, ''Vagueness'', which defended the view, it has been taken seriously by many philosophers working in the area.

References

* Williamson, T. 1994. ''Vagueness'' London: Routledge. Epistemological theories Metaphysical theories Theories of language {{ling-stub