semi-order See ORDERING.

semiosis (from Greek semeiosis, 'observation of signs'), the relation of signification...

semiotic See THEORY OF SIGNS.

Seneca, Lucius Annaeus See STOICISM.

sensa See PERCEPTION. sensationalism, the belief that all mental states –...

sense See MEANING.

sense, direct See OBLIQUE CONTEXT.

sense, indirect See OBLIQUE CONTEXT.

sense-data See PERCEPTION.

sense-datum theory See PHENOMENALISM.

sense qualia See QUALIA.

senses, special See FACULTY PSYCHOLOGY. sensibilia (singular: sensibile), as used by Russell,...

sensible intuition See KANT.

sensibles, common See ARISTOTLE, SENSUS COM -. MUNI.

sensibles, proper See ARISTOTLE.

sensibles, special See ARISTOTLE, FACULTY PSY -. CHOLOG. sensorium, the seat and...

sensum See PERCEPTION.

sensus communis a cognitive faculty to which the five senses report. It...

sentence, basic See FOUNDATIONALISM.

sentential calculus See FORMAL LOGIC.

sentential connective also called sentential operator, propositional connective, propositional operator, a word...

sentential operator See SENTENTIAL CONNECTIVE.

sentiment See SENTIMENTALISM.

separation, axiom of See AXIOM OF COMPREHEN -. SION , SET THEOR.

separation of law and morals See HART.

sequent calculus See CUT -ELIMINATION THEOREM.

set See SET THEORY.

set, singleton See SET THEORY.

set, well-ordered See SET -THEORETIC PARADOXES.

set-theoretic paradoxes a collection of paradoxes that reveal difficulties in certain central...