Mathematics
Undergraduate
誰か解説お願いします
整数p による剰余和について, 以下を示せ
(well-defined).
(結合律)
(零元)
(逆元)
(1) + の定義は剰余類の代表の選び方によらずにきちんと定義されている
(3) n+0=0+n=n
(4) n+ -n= -n+n=0
(5) m+n=n+m
(交換律)
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