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Re: Set Size to represent Natural Numbers { {}{}{}{}{} }
Posted:
Feb 25, 2012 5:10 PM
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On Feb 26, 7:28 am, Graham Cooper <grahamcoop...@gmail.com> wrote: > On Feb 26, 7:15 am, Zuhair <zaljo...@gmail.com> wrote: > > > > > > > > > > > On Feb 25, 11:09 pm, Graham Cooper <grahamcoop...@gmail.com> wrote: > > > > On Feb 26, 6:03 am, Zuhair <zaljo...@gmail.com> wrote: > > > > > On Feb 25, 10:27 pm, Graham Cooper <grahamcoop...@gmail.com> wrote: > > > > > > On Feb 26, 3:52 am, Zuhair <zaljo...@gmail.com> wrote: > > > > > > > On Feb 24, 9:15 am, Graham Cooper <grahamcoop...@gmail.com> wrote: > > > > > > > > If we take {} as being an elementary SCORE / SCRIBE symbol, > > > > > > > > then we can do maths caveman style, scribbling on walls > > > > > > > > //// + // = ////// > > > > > > > > 1 = { {} } > > > > > > > 2 = { {},{} } > > > > > > > 3 = { {},{},{} } > > > > > > > 4 = { {},{},{},{} } > > > > > > > .. > > > > > > > > So the Natural Numbers are merely a count of all possible set sizes! > > > > > > > > Herc > > > > > > > --http://Matheology.com > > > > > > > hmmm..., Ok lets violate Extensionality in order to allow distinct > > > > > > empty objects, the problem is that we would have many of those sets > > > > > > per size, so for example we would have > > > > > > infinitely many { {} } sets, so how do we pick The one representing > > > > > > number 1? > > > > > > A repeatable element or 2 might be useful. > > > > > > A = B IIFF A(x): x e A <-> x e B > > > > > VS > > > > > A = B IFF A(x) (x =/= {}) -> (x e A <-> x e B) > > > > > > NOW > > > > > { {}.{},{}, a, b, c } =/= { {}, b, a, c } > > > > > > BUT > > > > > { a, b, c } = { b, a, c } > > > > > > Herc > > > > > Yes I already said that, "if we violate Extensionality" then we can > > > > have multiple distinct empty objects, but this is not the problem, the > > > > problem is that we would have multiple objects that are empty, so we > > > > will have multiple {{}} objects, now which one of those is 1??? > > > > then we can do maths caveman style, scribbling on walls > > > //// + // = ////// > > > 1 = { {} } > > > 2 = { {},{} } > > > 3 = { {},{},{} } > > > 4 = { {},{},{},{} } > > > > Since a simple replacement for Extensionality allows > > > > 1 =/= 2 the above method should suffice. > > > > Herc > > > No you can't, I already asked you the question many times, how do you > > pick the {{}} for which the symbol 1 stands? you have infinitely many > > {{}} sets, so which one of them is 1. You didn't answer till now this > > simple question? I gave you a suggestion which you simply ignored just > > to repeat your assertion again and again. You wrote 1= {{}} My > > question again > > which {{}} of the infinitely many {{}} sets you mean? The same > > question applies to the rest of 2,3,4,.... My suggestion is that 1 is > > the set of all {{}} sets, 2 is the set of all { {},{} } sets... etc... > > This would be understandable because those sets would be unique > > because according to your suggested weak extensionality there will be > > unique sets of those, i.e. > > there will be unique sets of all {{}} sets, also a unique set of all > > { {},{} } sets, etc... > > > In symbols again: my alternative suggestion for your approach is: > > > 1={ {{}} , {{}} , .....} = {{x}| ~Exsit y. y e x} > > > 2= { { {},{} } , { {},{} } , .....} = { {x,y}| ~Exist z. z e x & > > ~Exist u. u e y} > > > etc... > > > Zuhair > > Some further axioms on "=" > would be required to ensure > > {{}} = {{}} > > and > > {{},{}} = {{},{}} > > Where is the problem with > > {{}{}{}} + {{}{}} = {{}{}{}{}{}} > > 'there are oo-many {{}} sets' makes no sense to me. > > Herc
A simpler system might be
{...{}...} = {{}{}{} ..{}}
Since each is a form of redundancy.
Herc
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