1=1. We can put 2 into this equation like this. 1:2=1:2. So it means it is changed 1=1 into 2=2. This means number can be changed anytime.
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Originally Posted by philipishin So it means it is changed 1=1 into 2=2. This means number can be changed anytime. Nothing changed. One is one, two is two, $\cdots$ $n\text{ is }n.~$ So what is new?
If you mean that a number can be written in many different ways, yes, that is true.