Difference between revisions of "Talk:Additive function"

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(I do not get the hint: why one must be careful?)
 
(What is meant by "values"?)
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"Warning about structure": "<math>\dots\implies f(0)=0</math> so one must be careful!" --- I do not get the hint; naturally, additive function between groups sends 0 into 0, but why one must be careful? [[User:Boris|Boris]] ([[User talk:Boris|talk]]) 07:59, 19 March 2016 (UTC)
 
"Warning about structure": "<math>\dots\implies f(0)=0</math> so one must be careful!" --- I do not get the hint; naturally, additive function between groups sends 0 into 0, but why one must be careful? [[User:Boris|Boris]] ([[User talk:Boris|talk]]) 07:59, 19 March 2016 (UTC)
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"On set functions": "for valued set functions (set functions that map to values)" --- ?? What is meant by "values"? I know what is called the value of a function; but is there a notion of a function that maps something to non-values?? [[User:Boris|Boris]] ([[User talk:Boris|talk]]) 08:03, 19 March 2016 (UTC)

Revision as of 08:03, 19 March 2016

"Warning about structure": "[math]\dots\implies f(0)=0[/math] so one must be careful!" --- I do not get the hint; naturally, additive function between groups sends 0 into 0, but why one must be careful? Boris (talk) 07:59, 19 March 2016 (UTC)

"On set functions": "for valued set functions (set functions that map to values)" --- ?? What is meant by "values"? I know what is called the value of a function; but is there a notion of a function that maps something to non-values?? Boris (talk) 08:03, 19 March 2016 (UTC)