Henkin semantics See SECOND-ORDER LOGIC.

Henotheism allegiance to one supreme deity while conceding existence to others;...

Henry of Ghent (c.1217–93), Belgian theologian and philosopher. After serving as a church...

Hentisberi, Hentisberus See HEYTESBURY.

Heraclitus (fl. c.500 B.C.), Greek philosopher. A transition figure between the...

Herbart Johann Friedrich (1776–1841), German philosopher who significantly contributed to psychology...

Hereditary property See RELATION.

Hermarchus See EPICUREANISM.

Hermeneutic circle See HERMENEUTICS.

Hermeneutics the art or theory of interpretation, as well as a...

Hermeticism See HERMETISM.

Hermetism also hermeticism, a philosophical theology whose basic impulse was the...

Herzen Alexander (1812–70), Russian editor, memoirist, and social philosopher, in exile...

Heterological See SET-THEORETIC PARADOXES.

Heteronomy See KANT.

Heuristics a rule or solution adopted to reduce the complexity of...

Hexis (Greek, from hexo, 'to have', 'to be disposed'), a (good...

Hidden variable See PHILOSOPHY OF SCIENCE,. QUANTUM MECHANIC.

Hierarchical system See COMPUTER THEORY.

Hierarchy a division of mathematical objects into subclasses in accordance with...

Higher order See ORDER.

Higher-order logic See FORMAL LOGIC, PHILOSOPHY. OF LOGIC , SECOND -ORDER LOGI....

Hilbert’s Program a proposal in the foundations of mathematics, named for its...

Hinayana Buddhism See BUDDHISM.

Hinduism the group of religious and philosophical traditions of India that...

Hintikka Jaakko (b.1929), Finnish philosopher with contributions to logic, philosophy of...

Hintikka set also called model set, downward saturated set, a set (of...

Hippias of Elis See SOPHISTS.

Hippocrates (fifth century B.C.), semilegendary Greek physician from Cos. Some sixty...

Historical determinism See MARXISM.