[Maxima-bugs] [ maxima-Bugs-1891216 ] is(if a>0 and a>0 and a>0 ...) => internal error

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Bugs item #1891216, was opened at 2008-02-11 10:38
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Stavros Macrakis (macrakis)
Assigned to: Nobody/Anonymous (nobody)
Summary: is(if a>0 and a>0 and a>0 ...) => internal error

Initial Comment:
is(if a>0 and a>0 then 1) => unknown (OK)

is(if a>0 and a>0 and a>0 then 1)
   =>
Maxima encountered a Lisp error:
 Error in PROGN [or a callee]: Bad plist
   ((MGREATERP $A (0 DATA (((MGRP ...

Same for

  is(if a>0 and a>0 and a>0 then true else false)

i.e. it is not because the return value is a non-boolean

Maxima 5.13.0 http://maxima.sourceforge.net
Using Lisp GNU Common Lisp (GCL) GCL 2.6.8 (aka GCL)


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You can respond by visiting: 
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