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One Hundred Prisoners and a Light Bulb (Paperback, 1st ed. 2015)
Loot Price: R471
Discovery Miles 4 710
You Save: R69
(13%)
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One Hundred Prisoners and a Light Bulb (Paperback, 1st ed. 2015)
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List price R540
Loot Price R471
Discovery Miles 4 710
You Save R69 (13%)
Expected to ship within 10 - 15 working days
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A group of 100 prisoners, all together in the prison dining area,
are told that they will be all put in isolation cells and then will
be interrogated one by one in a room containing a light with an
on/off switch. The prisoners may communicate with one another by
toggling the light switch (and that is the only way in which they
can communicate). The light is initially switched off. There is no
fixed order of interrogation, or interval between interrogations,
and the same prisoner may be interrogated again at any stage. When
interrogated, a prisoner can either do nothing, or toggle the light
switch, or announce that all prisoners have been interrogated. If
that announcement is true, the prisoners will (all) be set free,
but if it is false, they will all be executed. While still in the
dining room, and before the prisoners go to their isolation cells
(forever), can the prisoners agree on a protocol that will set them
free? At first glance, this riddle may seem impossible to solve:
how can all of the necessary information be transmitted by the
prisoners using only a single light bulb? There is indeed a
solution, however, and it can be found by reasoning about
knowledge. This book provides a guided tour through eleven classic
logic puzzles that are engaging and challenging and often
surprising in their solutions. These riddles revolve around the
characters' declarations of knowledge, ignorance, and the
appearance that they are contradicting themselves in some way. Each
chapter focuses on one puzzle, which the authors break down in
order to guide the reader toward the solution. For general readers
and students with little technical knowledge of mathematics, One
Hundred Prisoners and a Light Bulb will be an accessible and fun
introduction to epistemic logic. Additionally, more advanced
students and their teachers will find it to be a valuable reference
text for introductory course work and further study.
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