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

```

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