On 04 Mar 2012, at 13:27, Evgenii Rudnyi wrote:

## Advertising

An experiment to perform in order to prove experimentally whether Piexists independently from the mindThe idea came during discussion on embryophysics list http://groups.google.com/group/embryophysics/t/419d3c1fec30e3b5Below there is a description of the experiment that one could thinkof to check the relationships between Mathematics, Mind and Nature(the MMN experiment). In my view this could be done as a realexperiment (so this is actually not a thought experiment) providedwe find two mathematicians who agree to sacrifice their life forscience. I believe that this should be not that difficult providedthe importance of the experiment for the modern science.Let us take a completely isolated bunker where the experimentbegins. The initial conditions are enough so that mathematicians cancomfortably chat for awhile with each other about Pi and prove thatit exists. Eventually the oxygen in the bunker will run over andboth mathematicians die. From a viewpoint of a natural science, wehave a dynamical system that eventually comes to the equilibriumstate. I assume that at the beginning when mathematicians prove thatPi exists we have a consequence of physical states where Pi existsindeed. If you are in doubt, please suggest any other physicalstates where you say that Pi exists. The goal of the experiment isto establish what happens with Pi at the end when the system reachesthe stationary state.Because of experimental settings, we can neglect the interactionwith environment and I hope that this could be done even for thequantum mechanics treatment.Before the experiment will be perform in real, you can take your beton whether Pi is retained after the death of mathematicians or not.

`I confess I cannot make any sense of what you say here. What do you`

`mean by "Pi is retained", how do you verify this (after the death of`

`the mathematicians)?`

`Also, what is the initial theory that you have to use to interpret the`

`experience?`

`I have no clue of the meaning of "I assume that at the beginning when`

`mathematicians prove that Pi exists we have a consequence of physical`

`states where Pi exists indeed". "consequence of physical states where`

`Pi exists" contains too many vague abuse of languages.`

`When mathematicians proves that Pi exists, they assume a lot (real`

`numbers, circles, length of enough smooth curves, set theory, etc.).`

`Usually, they don't prove that Pi exist, they assume that all Cauchy`

`sequences define some number, called "real number", and they show that`

`curves sufficiently smooth have a length definable by such a sequence.`

`Then they define Pi, by the ratio of the length of a circle with its`

`diameter, and build the Cauchy sequence defining it.`

`And also, why those two poor mathematicians have to die? Is not Earth`

`close enough, and the death of Archimedes enough? (assuming the rest`

`makes sense).`

You might just be joking, perhaps. Bruno http://iridia.ulb.ac.be/~marchal/ -- You received this message because you are subscribed to the Google Groups "Everything List" group. To post to this group, send email to everything-list@googlegroups.com. To unsubscribe from this group, send email to everything-list+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/everything-list?hl=en.