14. Given a diophantine equation with any number of
unknown quantities and with rational integral
numerical coefficients: To devise a process
according to which it can be determined by a
finite number of operations whether the equation
is solvable in rational integers.
10. Determination of the Solvability
of a Diophantine Equation
(Entscheidung der Losbarkeit einer
diophantischen Gleichung.)
15. 10. Determination of the Solvability
of a Diophantine Equation
(Entscheidung der Losbarkeit einer
diophantischen Gleichung.)
Given a diophantine equation with any number of
unknown quantities and with rational integral
numerical coefficients: To devise a process
according to which it can be determined by a
finite number of operations whether the equation
is solvable in rational integers.
28. “The end the work was
finished, but my intellect
never quite recovered from the
strain. I have been ever since
definitely less capable of
dealing with difficult
abstractions than I was
before. This is part, though
by no means the whole, of the
reason for the change in the
nature of my work.”
30. “It is of fundamental
importance for the character
of this problem that only
mechanical calculations
according to given
instructions [...] are
admitted as tools for the
proof.”
38. Question: Is it possible to
create a machine that
examines another machine's
configuration and input and
verify if it halts?
39. “There's no general process
for determining whether the
machine might scan a character
it's not expecting, or gets
into an infinite loop printing
blanks, whether it crashes,
burns, goes belly up, or
ascends to the great bit
bucket in the sky.”
44. “If the basic
logics of a
machine designed
for solution of
equations coincide
with the logics of
a machine for a
department store,
I'd regard this as
the most amazing
coincidence I've
ever encountered.”