数学无穷与中介逻辑(上)——Leibniz的割线与切线问题在中介逻辑中的逻辑数学解释方法
朱梧槚, 宫宁生. 杜国平
Mathematical Infinity and Medium Logic (I) —Logical-mathematical Interpretation of Leibniz’s Secant and Tangent Lines Problem  in Medium Logic
ZHU Wu-jia, GONG Ning-sheng, DU Guo-ping
数学季刊 . 2013, (1): 41 -46 .