[Blindmath] Nemeth equivolent for Logical Not

[Kevin Fjelsted]

It would appear that the list doesn't permit me to email the actual print symbol. If I email it to myself with gmail, the symbol is preserved.

However I had pasted it into the original post and I see that in the reply my original message omits the symbol.
This is an example of the "not" symbol on the web that appears to render.
http://www.proofwiki.org/wiki/Symbols:Logical_Operators#Not
It would surprise me that such an important logical symbol would have been left out of the Nemeth definition.


-Kevin


On Dec 19, 2013, at 1:32 PM, Rose <engs0006 at umn.edu> wrote:

> Hi,
> I think it depends on how the logical not sign is represented in print. If it is represented as a tilde ~ then it would translate as that ... dots (4, 156), but sometimes the print will use what looks like "half turnstile"  which looks to me like a left pointing arrow with only a straight left lower barb, this symbol is not in the Nemeth code, but I have seen it transcribed as the arrow it looks like dots (1246, 6, 1256) or simply as the "shape indicator n" dots (1246, 1345).
> 
> My guess is that the print has it as what looks like a "half turnstile" and duxbury is not translating it correctly. I hope this helps.
> 
> 
> On 12/19/2013 12:28 PM, Kevin Fjelsted wrote:
>> I would like clarification on the Nemeth contraction/symbol for producing the logical not "�".
>> The Latex equivalent is \lnot.
>> I cannot find any reference for the Nemeth. Duxbury appears to translate latex \lnot as dots 4-3456.
>> Is this correct?
>> If so, where is this  contraction listed in the Nemeth reference?
>> -Kevin
>> 
>> 
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