Topology

Articles
Title
Proof That a Finite Subset of a Topological Space is Sequentially Compact
Proof That a Function Continuous For Every Source Topology is Continuous With Respect to the Indiscrete Topology
Proof That a Function Continuous on Subsets of a Set is Continuous on the Union of the Sets
Proof That a Function From a Discrete Topology to a Subtopology is Continuous
Proof That a Function From a Topological Space onto a Cartesian Product is Continuous if and Only if the Component Functions are Continuous
Proof That a Function is Continuous if and Only if the Inverse Image of a Closed Set is Closed
Proof That a Function is Continuous if and Only if the Inverse Image of Every Basis Element of the Image Topology is Open in the Source Topology
Proof That a Function on a First Countable Space is Continuous at a Point if and Only if it is Sequentially Continuous at The Point
Proof That a Locally Compact Hausdorff Space is Regular
Proof That a Metric on a Metric Space Induces a Metric on the Quotient Space of Cauchy Sequences

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