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This one
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I never understood what it means and I can't find its meaning...

I never understood what it means and I can't find its meaning...

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- Thread starter Tosh5457
- Start date

- #1

- 130

- 28

This one
in this context

I never understood what it means and I can't find its meaning...

I never understood what it means and I can't find its meaning...

- #2

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It means union. In this particular case, it is the union, for all subsets G of the set T, of the sets of ordered pairs of the elements constructible from the set G.

In other words, it is the set of all mappings (of functions) of T into itself.

In other words, it is the set of all mappings (of functions) of T into itself.

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