Re: Re: Testing Mathematica Expressions?

*To*: mathgroup at smc.vnet.net*Subject*: [mg106721] Re: [mg106698] Re: Testing Mathematica Expressions?*From*: Andrzej Kozlowski <akozlowski at gmail.com>*Date*: Fri, 22 Jan 2010 05:35:21 -0500 (EST)*References*: <hiuusd$92o$1@smc.vnet.net> <hj131r$be8$1@smc.vnet.net> <201001191012.FAA28974@smc.vnet.net> <hj6qfb$8r0$1@smc.vnet.net> <201001210954.EAA16445@smc.vnet.net>

On 21 Jan 2010, at 10:54, AES wrote: > In article <hj6qfb$8r0$1 at smc.vnet.net>, > Andrzej Kozlowski <akozlowski at gmail.com> wrote: > >>> I'd be glad to spend some time perusing and attempting to understand an >>> example (the simple the better, of course) for which >>> >>> ToExpression["soks"] /. ruleOne >>> >>> and >>> >>> soks /. ruleOne >>> >>> typed into separate Input cells under identical starting conditions, >>> where 'soks' is a sequence of key strokes, yield differing results when >>> evaluated. > >> Unevaluated[x] /. x -> 3 >> >> Andrzej Kozlowski > > You got me there. > > But how about some simple expression that does not contain any > Mathematica-unique syntax or commands -- just a sequence of input > keystrokes that would be interpreted as a meaningful algebraic or > mathematical expression by someone who was reasonably knowledgeable in > math and algebra, but had never encountered Mathematica? > But why should such a thing exist? And what is the significance of its non-existence? Andrzej Kozlowski

**References**:**Re: Testing Mathematica Expressions?***From:*AES <siegman@stanford.edu>

**Re: Testing Mathematica Expressions?***From:*AES <siegman@stanford.edu>