Ctadel: Symbolic Manipulation

Rewriting is done through rulebases of rewrite rules that are user extensible.

An example predefined rule is:

factor;   X*Y + X*Z => X*(Y+Z).

Rules are predefined, but essentially nothing is fixed in the system.

Rules are predefined and are loaded on demand.

For example:

a*b+a*c with factor.
would both load the factor rulebase and factor the expression.

Properties of operators can be (re)declared (commutativity, associativity, and operator commuting diagrams).

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On 7 Oct 1999, 14:08.