Variables: Difference between revisions

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In the Emacs-based <em>interactive environment</em>, <code>declare</code> creates a new open scope in which variables can be declared. The variables are visible for the entire rest of the session.
 
(Most operations on free variables block until the variables hashave been bound. (but not <code>Show</code> onas theused other hand always proceedsabove).)
 
Assignment to dataflow variables is also called unification. It is actually a symmetric operation, e.g. the following binds B to 3:
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