negative? -- vonuvoli Definition

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Kind

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predicate;

Extends

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• negative? (from r7rs);

Procedure signature

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Procedure variants:

• ((real-zero |1...|) -> (false))
  • inputs:
    • a value of type real-zero;
    • ... -- at least one time;
  • output: a value of type false;
• ((real-positive |1...|) -> (false))
  • inputs:
    • a value of type real-positive;
    • ... -- at least one time;
  • output: a value of type false;
• ((real-negative |1...|) -> (true))
  • inputs:
    • a value of type real-negative;
    • ... -- at least one time;
  • output: a value of type true;
• ((real |1...|) -> (false))
  • inputs:
    • a value of type real;
    • ... -- at least one time;
  • output: a value of type false;

Exports

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• vs:arithmetic -- (vonuvoli arithmetic);

Exports recursive

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• vs:base -- (vonuvoli base);

Referenced-types

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• real-zero;
• false;
• real-positive;
• real-negative;
• true;
• real;

Categories

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• vs:r7rs;
• vs:arithmetic;