Liable is often used in a business sense, i.e. limited liability: only having to pay for what you invested if a business goes bankrupt for explanation of this sense see business entity.
... x1 = x and 1x = 1 (see Exponentiation).
1+1 can have over 10 different results: 0, 1, 2, 10, 110, 11, 10.01, 3, 1100 or "11".
One cannot be used as the base ...
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