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Or define what = means. In fact, most university courses make this same mistake.
by kutkloon7 9y ago
Or define what = means. In fact, most university courses make this same mistake.
- umanwizard 9y agoYeah, this is an abuse of notation (it should be written as set membership, not equality), but the "=" in "0.99... = 1" is really equality, so I don't think this is a good example when talking about that.
- kutkloon7 9y agoTrue. My point is that equality is never defined well.
- umanwizard 9y agoNever? Equality always means the same thing in every case I can think of, except big-O notation. You picked the one example I'm aware of in all of mathematics where it means something different.
- kutkloon7 9y agoI am not arguing that it is ill-defined. I am arguing that no-one takes the effort to rigorously define it.