For a set function on a semi-ring, does additive imply finitely additive?
95373
Additive set function on a semiring of sets
24050
Characterization of the Closure of a Set
51428
Do these two observations suffice to show that a finite boolean ring must be of the form $\mathbb{Z}_2\times\cdots\times\mathbb{Z}_2$?
57021
Is the set of all functions $f:Z_+\rightarrow Z_+$ that are eventually constant countable.
83009
Showing that $R(x)$ is a proper subset of $R((x))$ if $R$ is a field
71976
Is every element on a set also a set?
18361
Does the unit generate the additive group in a unital ring with cyclic additive group?
148824
Is associative binary operator closed on this subset?
73850
Cardinality of set of functions
78256
Finite additivity in outer measure
152013
elementary ring proof with composition of functions and addition of functions as operations
134104
Is there a Cantor-Schroder-Bernstein statement about surjective maps?
18330
Does $R[x] \cong S[x]$ imply $R \cong S$?
145561
About the additive group and the multiplicative group of a field
5893
On the commutative property of multiplication (domain of integers, possibly reals)
147013
Subset of a finite set is finite
85961
Is the ring and semi-ring definition of algebra and set linked?