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Lynch, Mark – International Journal of Mathematical Education in Science and Technology, 2005
The following theorem is proved: let f : X --> Y and suppose points are closed in Y (that is, singleton sets are closed in Y ). Then, f is continous if and only if f[1] preserves separated sets. We also give a counter example in the event points are not closed in Y.
Descriptors: Educational Psychology, Mathematics Education
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Akram, Muhammad; Siddiqui, Asim Jamal; Yasmeen, Farah – International Journal of Mathematical Education in Science and Technology, 2004
In order to learn the concept of statistical techniques one needs to run real experiments that generate reliable data. In practice, the data from some well-defined process or system is very costly and time consuming. It is difficult to run real experiments during the teaching period in the university. To overcome these difficulties, statisticians…
Descriptors: Statistics, Teaching Methods, Statistical Data, Higher Education