Monday, April 6, 2020

Back button

Creating a generic Back link button on each page

<input type= 'button' onclick='javascript:history.back();return false;' value='Back'>

source: https://stackoverflow.com/questions/8814472/how-to-make-an-html-back-link/61060762#61060762


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Is the number of all INTO functions from the set {1, 2, 3, ..... n} to itself equal to all number of MANY to ONE fuctions?

Yes,  t he number of all into functions from the set {1, 2, 3, .... n} to itself is exactly equal to the number of many-to-one functions ...