**addition:**- for instance
`x + y`, **multiplication:**- for instance
`x * y`, **subtraction:**- for instance
`x - y`, **division-remainder:**- for instance
`x rem y`, **unary-minus:**- for instance
`-x`, **equality-test:**- for instance
`x = y`, **unequality-test:**- for instance
`x -= y`, **strict-inequality-test:**- for instance
`x < y`, **large-inequality-test:**- for instance
`x <= y`, **printing:**- for instance
`print(x)`.

2004-12-01