Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ ¹ ² ³ °
 

You are not logged in. #2 20130703 05:35:07
Re: set relationI'd say so. The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #4 20130703 06:10:52
Re: set relationNo, the relation R is {{1,1},{2,2},{1,3}}, like it says. The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #5 20130703 06:20:46
Re: set relationSorry. maybe I'm just thick; but how is that a relation? It just looks like a set of ordered pairs. You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #6 20130703 06:23:58
Re: set relationWhat you are thinking of is an operation. The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #7 20130703 06:38:18
Re: set relationOK. Thanks. I'm going to use > to mean 'is related to' You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #8 20130703 06:39:15
Re: set relationSounds okay. The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #10 20130703 23:25:09
Re: set relationNo problem. Of, course, the standard relartion notation is to use the name of the relation, e.g.: The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment 