数学概念在内涵与外延上的表征

Characterizations of the Mathematical Concept in the Intension and Extent

本文提出并论述了数学概念在内涵与外延上的两个表征：（１）结层性；（２）侧综性。同时，还进一步阐明了数学概念的兼容性、非兼容性和反变性。

This paper presented and dealt with two characterizations of the mathematical coneeptin the intenion and extent: (1) The quality of structure and layer level. (2) The quality of side andsynthesis. In the meantime, I further elucidated the compatibility, incompatibility and contravariance of the mathematical concept.