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On page 113 Munkres (Topology: Second Edition) defines a Jtuple as follows:
I was somewhat perplexed when I tried to completely understand the function [itex] \ x \ : \ J \to X [/itex].
I tried to write down some specific and concrete examples but still could not see exactly how the function would work.
For example if [itex] J = \{1, 2, 3 \} [/itex] and X was just the collection of all the letters of the alphabet i.e.
[itex] X = \{ a, b, c, ... \ ... \ z \} [/itex] then ...
... obviously a map like 1 > a, 2 > d, 3 > h does not work as the intention, I would imagine is to have a mapping which specifies a number of triples ... but how would this work?
Can someone either correct my example or give a specific concrete example that works.
Would appreciate some help.
Peter
I was somewhat perplexed when I tried to completely understand the function [itex] \ x \ : \ J \to X [/itex].
I tried to write down some specific and concrete examples but still could not see exactly how the function would work.
For example if [itex] J = \{1, 2, 3 \} [/itex] and X was just the collection of all the letters of the alphabet i.e.
[itex] X = \{ a, b, c, ... \ ... \ z \} [/itex] then ...
... obviously a map like 1 > a, 2 > d, 3 > h does not work as the intention, I would imagine is to have a mapping which specifies a number of triples ... but how would this work?
Can someone either correct my example or give a specific concrete example that works.
Would appreciate some help.
Peter
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