1
Basic theory
III Local Fields
1
Basic
theory
W
e
are
going
to
start
b
y
making
loads
of
definitions,
whic
h
y
ou
ma
y
or
may
not
ha
v
e
seen
b
efore.
Contents
1.1 Fields
1.2 Rings
1.3 Topological rings
1.4 The p-adic numbers
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Table of Contents
1.1 >