D. Tall, Perceptions, operations and proof in undergraduate mathematics. The De Morgan Journal 1 no. 1 (2011), 19-27. PDF file of the paper.
Professor David O. Tall (born 15 May 1941) is a mathematics education theorist at the University of Warwick. Personal homepage, Wikipedia.
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Hi, my name is Mariela i want to know about mathematical thinking. I am studing a master about blind people and mathematical thinking cause in my country does not exist. I do not speak English, but I hope you undertand me.
Tanks
Regards