Ethics. the doctrine that moral values and duties can be discerned directly.

Metaphysics.

the doctrine that in perception external objects are given immediately, without the intervention of a representative idea.

the doctrine that knowledge rests upon axiomatic truths discerned directly.

Logic, Mathematics. the doctrine, propounded by L. E. J. Brouwer, that a mathematical object is considered to exist only if a method for constructing it can be given.

the doctrine that there are moral truths discoverable by intuition

the doctrine that there is no single principle by which to resolve conflicts between intuited moral rulesSee also deontological

philosophythe theory that general terms are used of a variety of objects in accordance with perceived similaritiesCompare nominalism, Platonism

logicthe doctrine that logical axioms rest on prior intuitions concerning time, negation, and provability

the theory that mathematics cannot intelligibly comprehend the properties of infinite sets, and that only what can be shown to be provable can be justifiably asserted

the reconstruction of mathematics or logic in accordance with this viewCompare formalism, logicism, finitism

the doctrine that knowledge, esp of the external world, is acquired by intuition