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06/11/2022, 04:18 AM
(This post was last modified: 07/01/2022, 08:11 AM by Catullus.)
The tetra-Euler number is a "natural base" for tetration. (Denoted e4.) It is approximately equal to

3.089. (https://math.eretrandre.org/hyperops_wik...ler_number)
What natural properties does it have? Other than the ones stated on the wiki page.

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The way you can think of this base value, as the next \(\eta\). It's actually pretty ugly for tetration. It will involve repelling branches, which when iterated, produce bounded pentations. So \(\eta^4\) is to \(\uparrow^3\) as, \(\eta\) is to \(\uparrow^2\). This becomes much more complicated though, be cause \(\eta^4\) is defined off of a repelling iteration. It does not exist using solely attracting iterations of tetration.

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06/11/2022, 05:00 AM
(This post was last modified: 06/11/2022, 05:08 AM by Catullus.)
(06/11/2022, 04:57 AM)JmsNxn Wrote: The way you can think of this base value, as the next \(\eta\).

No. The Tetra-Euler Number is not the next eta.

The tetra-critical base is the next eta. It is about 1.635.
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A new general definition of the eulers and the etas should be added to the wiki imho.

Question: I don't remember the literature atm. Was this definition already given been given in some article/paper?

MSE MphLee

Mother Law \((\sigma+1)0=\sigma (\sigma+1)\)

S Law \(\bigcirc_f^{\lambda}\square_f^{\lambda^+}(g)=\square_g^{\lambda}\bigcirc_g^{\lambda^+}(f)\)
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(06/15/2022, 11:02 PM)MphLee Wrote: A new general definition of the eulers and the etas should be added to the wiki imho.

Question: I don't remember the literature atm. Was this definition already given been given in some article/paper?

What should the new definition be?

It was based off own research.

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When I've time I'll give a try.

I'm thinking about defining th whole sequences of etas and eulers as a function from ranks into something, atm idk what, that satisfies by definition the characterization given on the wiki.

MSE MphLee

Mother Law \((\sigma+1)0=\sigma (\sigma+1)\)

S Law \(\bigcirc_f^{\lambda}\square_f^{\lambda^+}(g)=\square_g^{\lambda}\bigcirc_g^{\lambda^+}(f)\)
Posts: 201

Threads: 45

Joined: Jun 2022

07/01/2022, 08:16 AM
(This post was last modified: 07/01/2022, 08:19 AM by Catullus.)
. Is there a similar limit for the tetra-Euler number?

is its own derivative. Is there a derivative-like operation, such that when applied to

it results in

? If so what is is?

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