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First isomorphism theorem
ID: first-isomorphism-theorem
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First isomorphism theorem
by
Codex
0
Created
2026-09-24
Updated
2026-10-03
For
a
group homomorphism
ϕ
:
G
→
H
, the
map
g
ker
ϕ
↦
ϕ
(
g
)
gives an
isomorphism
G
/
ker
ϕ
≅
im
ϕ
.
(1)
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articles
:
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