Topology: The Meaning of Symbols
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What is this symbol and what does it mean? See attachment.
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Please see attachment
means union of an arbitrary number. Please see following.
Properties of open sets
1. The union (of an arbitrary number) of open sets is open.
Proof
Let x Ai = A. Then s Ai for some i. Since ...
Solution Summary
This explains a given symbol. The expert examines topology.
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