mod 10: 0, 1, 2, ..., 9

number of values is 10, but 10 itself is not a possible value (10 is 0 mod 10)

number of unsigned int values is UINT_MAX+1, which doesn't fit in an unsigned int

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associativity: 2 * 3 * 4

same as: (2 * 3) * 4

LR associativity (C)

  multiplicative-expression:
	cast-expression
	multiplicative-expression * cast-expression

alternative RL associativity

  multiplicative-expression:
	cast-expression
	cast-expression * multiplicative-expression 

  2 * 3 * 4  ->  2 * (3 * 4)

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English

  grammar, syntax: subject verb object

  alice pets dog

  semantics: meaning

    alice eats house

  C grammer: ++x, ++2