The notion of "measurement"

[wigglieverse]

We all observe things.

Even things that don't 'exist', as such, except in our imagination (like infinite planes or surfaces of 'imaginary' points that behave like a 'real' infinite plane, say).

I think that, for any notion, it is impossible to conceive, or perceive it, without the existence of its opposite, or inverse.

In other words, we cannot observe increase without (the notion of) decrease. We can't belong (to some group) without the notion of (others) being 'out', rather than 'in'.

Selection and counting require notions of 'different/same', 'in/out', and 'gather/scatter', but also 'increase/decrease', 'fast/slow', to think of some.

So are all our notions like this (there are no 'singular', or 'triple' or 'pentagonal' notions)? Is this orthogonality universal, and are all of our notions --of change and measurement-- based on a handful of 'fundamental' ones?