Subject: sub_all

From: aikGuitarist <[email-masked]>
Date: 19 Nov 00 20:38:18 EST

substitute_all replaces all instances of a target instance with another. is
that right? for instance would it change, 

[1, [1, 3, 1], 3, [[1]]]

to 

[a, [a, 3, a], 3, [[a]]]

if i wanted to change all 1s to as. 

if this is true then i need a prolog predicate code (source code) for this,
otherwise a function that does exactly this. 

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