rng (Q17102802)
algebraic structure similar to ring but not necessarily having a multiplicative identity
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Current Data About rng
(P279) (Q121075789)
(P361) (Q26806569)
(P527) (Q181296)
(Q207348)
(P1889) (Q161172)
(Q26806569)
(P2534) \begin{aligned}(r+s)+t&=r+(s+t)\\r+s&=s+r\\r+0&=r\\r+(-r)&=0\\(rs)t&=r(st)\\r(s+t)&=rs+rt\\(r+s)t&=rt+st\end{aligned}
(P2579) (Q1208658)
(P7235) \begin{aligned}(r+s)+t&=r+(s+t)\\(rs)t&=r(st)\\\end{aligned}
r+s=s+r
0
\begin{aligned}r(s+t)&=rs+rt\\(r+s)t&=rt+st\end{aligned}
-r
other details
aliases pseudo-ring
non-unital ring
nonunital ring
ring
description algebraic structure similar to ring but not necessarily having a multiplicative identity

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