FTOOT (for the out of date)
In J terminology does verb correspond to this old fashion view of
function or the newer view so that a verb must be a one to one relation?
Donna
[EMAIL PROTECTED]
On 30-Jun-06, at 5:43 PM, John Randall wrote:
Mathematicians used to have a more inclusive idea of function,
including
"multivalued functions", which are now called "relations" (the
terminology
being most obvious in relational databases).
...
Multivalued functions are not functions in
modern terminology, and they are systematically eliminated from
calculus
curricula, except in implicit differentiation.
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