===== Commutative semiring =====
==== Definition ====
| @#55CCEE: context     | @#55CCEE: $X$ |

| @#FFBB00: definiendum | @#FFBB00: $\langle X,+,* \rangle \in \mathrm{CommSemiring}(X)$ |

| @#FFBB00: definiendum | @#FFBB00: $\langle X,+,* \rangle \in \mathrm{SemiRing}(X)$ |

| $a,b\in X$ |

| @#55EE55: postulate   | @#55EE55: $a*b=b*a$ |

==== Discussion ====
=== Reference ===
Wikipedia: [[https://en.wikipedia.org/wiki/Semiring|Semiring]]
==== Parents ====
=== Context ===
[[Semiring]]