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MathGroup Archive 2007

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Releasing several Holds simultaneously

  • To: mathgroup at smc.vnet.net
  • Subject: [mg82248] Releasing several Holds simultaneously
  • From: "Andrew Moylan" <andrew.j.moylan at gmail.com>
  • Date: Tue, 16 Oct 2007 03:27:09 -0400 (EDT)

Hold[a := Hold[1]]

How can I release both of these Holds (and thus execute a:=1)
simultaneously?

ReleaseHold[%] doesn't work; it evaluates a := Hold[1] before the other hold
is removed.

% /. Hold[x_]:>x does the same thing, because /. only matches once per part.



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