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sicp-all-tasks/sicp/3_002e36

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Exercise 3.36: Suppose we evaluate the following
sequence of expressions in the global environment:
(define a (make-connector))
(define b (make-connector))
(set-value! a 10 'user)
At some time during evaluation of the set-value!, the following
expression from the connector’s local procedure is evaluated:
(for-each-except
setter inform-about-value constraints)
Draw an environment diagram showing the environment in which the above
expression is evaluated.