%0 Journal Article %T Topologies and all that -- A Tutorial %A E. -E. Doberkat %J Mathematics %D 2015 %I arXiv %X This is a brief introduction to the basic concepts of topology. It includes the basic constructions, discusses separation properties, metric and pseudometric spaces, and gives some applications arising from the use of topology in computing. %U http://arxiv.org/abs/1503.00875v1