[R6RS] revised^1 exception vote list

William D Clinger will at ccs.neu.edu
Sun May 14 19:32:19 EDT 2006

Mike wrote:
> Correct?  If not, could you explain?

Close, but not quite correct.  For technical reasons related
to the difficulty of describing the semantics Kent requested,
a plausible prefix is not a Scheme value, and therefore not 
a possible argument to any procedure.  Hence the explosive
locution in munition 22.

If you were to replace my definition of plausible prefix with
a definition that makes a plausible prefix into a Scheme
value, then your suggested "the last value xn of that prefix"
would make no sense, because there is no such thing as the
last value of a Scheme value; in particular, you would not be
able to express the dependence of xn upon timing and choices
of the preceding xi, as required by Kent's semantics.


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