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Timeline for Can we add any two vectors?

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Sep 15, 2014 at 5:47 comment added Fattie For example, note that below, fibo has simply confused the OP, by referring to direct sum concepts. A shame!
Sep 15, 2014 at 5:46 comment added Fattie Hi Harry - that's a funny point, but the critical issue at hand is questions should be answered at the relevant level. For physicists in particular, this concept strikes home: if one is asking a question in the newtonian realm, say, it's incorrect to point out related concepts in the relativistic realm, or quantum realm, or, vice versa.
Sep 15, 2014 at 3:31 comment added Harry Johnston +1. To be picky though, you can add three apples and four oranges: the answer is "seven pieces of fruit".
Sep 15, 2014 at 0:18 vote accept geek101
Sep 15, 2014 at 0:18
Sep 14, 2014 at 20:34 history answered Fattie CC BY-SA 3.0