>= -- vonuvoli Definition comparator;
Procedure variants:
((number-not-nan) -> (true))
number-not-nan;true;((number-not-nan |2...|) -> (boolean))
number-not-nan;... -- at least 2 times;boolean;((number |1...|) -> (false))
vs:comparisons -- (vonuvoli comparisons positive);vs:arithmetic -- (vonuvoli arithmetic);vs:comparisons* -- (vonuvoli comparisons);vs:base -- (vonuvoli base);number-not-nan;true;boolean;number;false;