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SymbolsB

SymbolsB - THEOREM OF THE DAY Mathematical Symbols Below...

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Unformatted text preview: THEOREM OF THE DAY Mathematical Symbols Below are brief explanations of some commonly occurring symbols in mathematics presented in more or less haphazard order (the list is not intended to grow so long as to make this irksome). A word of caution — mathematics has no really fixed rules on what symbols stand for what; never mind that math- ematics is supposed to be a highly precise and formal language, reading it relies heavily on contextual informa- tion. A Σ might be an algebra; Σ n might mean the symmetric group; Σ i is more likely to mean summation! See http://members.aol.com/jeff570/mathsym.html for a valuable introduction to these issues. Symbol Meaning Comments { v | C ( v ) } set definition C ( v ) a membership condition on v . E.g. { v | v is an odd number } ∈ set membership E.g. 2 ∈ { x | x a prime number } is true; 2 ∈ {- 1 , , 1 } is false. Z integers { . . .- 3 ,- 2 ,- 1 , , 1 , 2 , 3 , . . . } , ‘Z’ is for the German ‘Zahlen’ (numbers) Q rationals numbers of form...
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SymbolsB - THEOREM OF THE DAY Mathematical Symbols Below...

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