INDIVIDUAL-SAMPLES, PREPARATIONS, AND STATES IN PIRONS APPROACH TO QUANTUM PHYSICS

The mathematical description of the three distinct fundamental notions of ''individual sample,'' of ''preparing procedure,'' and of ''Piron' s state'' of a physical entity are precisely introduced in the framewo rk of the Piron's ''preparation-question structure'' (without specific axioms C, P, A) based on Ludwig's ''selection structure.'' We compare our realization of the above notions, with a similar use of the stand ard terminology of the ''Geneva School'' adopted by Pykacz and Santos in a recent paper.