用推出符号“=>”证明平面几何题是一种新的演绛推理格式。这种格式,层次清楚,简明扼要,直观性强,有整体感,有助于克服学生证题中的盲目性,便于作业批改。它的优点是传统的“三段论”证法无与伦比的。而目前使用的 It is a new deductive reasoning format to prove the plane geometry problem with the extrusion symbol “=>”. This format has clear levels, is concise, intuitive, and has a sense of integrity. It helps to overcome the blindness in the student’s testimony and facilitates job correction. Its advantage is that the traditional “three-segment theory” is unparalleled. Currently used