KASH3 Ref - IsExact

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| ### Function IsExact ( elt-dif/fld^fun a ) -> elt-alg^boo, elt-fld^fun ### Optional Arguments
Results | elt-ord^rat |  | 1 <= Results <= 2
### Description Return whether a is known to be an exact differential. If true additionally return a generator. If a is not already known to be exact then no attempts to determine whether a is exact or not are currently undertaken.
| Built: Mon Nov 14 21:12:39 UTC 2005 on mack