Skip to main content

Let $\{0,1\}^{<\omega}$ denote the subgroup of $\{0,1\}^{<\omega}$$\{0,1\}^{\omega}$ where $f:\omega\to\{0,1\}$ is a member of $\{0,1\}^{<\omega}$ if there is $N\in\omega$ such that $f(n)= 0$ for all $n\in\omega$ with $n\geq N$.

If $(G,+) $$(G,+)$ is aan abelian group with $|G|=\aleph_0$ and $g+g = 0$ for all $g\in G$, does this imply $G\cong \{0,1\}^{<\omega}$?

Let $\{0,1\}^{<\omega}$ denote the subgroup of $\{0,1\}^{<\omega}$ where $f:\omega\to\{0,1\}$ is a member of $\{0,1\}^{<\omega}$ if there is $N\in\omega$ such that $f(n)= 0$ for all $n\in\omega$ with $n\geq N$.

If $(G,+) $ is a group with $|G|=\aleph_0$ and $g+g = 0$ for all $g\in G$, does this imply $G\cong \{0,1\}^{<\omega}$?

Let $\{0,1\}^{<\omega}$ denote the subgroup of $\{0,1\}^{\omega}$ where $f:\omega\to\{0,1\}$ is a member of $\{0,1\}^{<\omega}$ if there is $N\in\omega$ such that $f(n)= 0$ for all $n\in\omega$ with $n\geq N$.

If $(G,+)$ is an abelian group with $|G|=\aleph_0$ and $g+g = 0$ for all $g\in G$, does this imply $G\cong \{0,1\}^{<\omega}$?

Changed $x$ in the final question to $g$ which seems to agree with the qualifier for all $g \in G$.
Source Link
Neil Hoffman
  • 5.3k
  • 1
  • 23
  • 48

Let $\{0,1\}^{<\omega}$ denote the subgroup of $\{0,1\}^{<\omega}$ where $f:\omega\to\{0,1\}$ is a member of $\{0,1\}^{<\omega}$ if there is $N\in\omega$ such that $f(n)= 0$ for all $n\in\omega$ with $n\geq N$.

If $(G,+) $ is a group with $|G|=\aleph_0$ and $x+x = 0$$g+g = 0$ for all $g\in G$, does this imply $G\cong \{0,1\}^{<\omega}$?

Let $\{0,1\}^{<\omega}$ denote the subgroup of $\{0,1\}^{<\omega}$ where $f:\omega\to\{0,1\}$ is a member of $\{0,1\}^{<\omega}$ if there is $N\in\omega$ such that $f(n)= 0$ for all $n\in\omega$ with $n\geq N$.

If $(G,+) $ is a group with $|G|=\aleph_0$ and $x+x = 0$ for all $g\in G$, does this imply $G\cong \{0,1\}^{<\omega}$?

Let $\{0,1\}^{<\omega}$ denote the subgroup of $\{0,1\}^{<\omega}$ where $f:\omega\to\{0,1\}$ is a member of $\{0,1\}^{<\omega}$ if there is $N\in\omega$ such that $f(n)= 0$ for all $n\in\omega$ with $n\geq N$.

If $(G,+) $ is a group with $|G|=\aleph_0$ and $g+g = 0$ for all $g\in G$, does this imply $G\cong \{0,1\}^{<\omega}$?

edited body; edited title
Source Link
GH from MO
  • 105.4k
  • 8
  • 293
  • 398

Countable abelian group of characterexponent $2$

Let $\{0,1\}^{<\omega}$ denote the subgroup of $\{0,1\}^{<\omega}$ where $f:\omega\to\{0,1\}$ is a member of $of \{0,1\}^{<\omega}$$\{0,1\}^{<\omega}$ if there is $N\in\omega$ such that $f(n)= 0$ for all $n\in\omega$ with $n\geq N$.

If $(G,+) $ is a group with $|G|=\aleph_0$ and $x+x = 0$ for all $g\in G$, does this imply $G\cong \{0,1\}^{<\omega}$?

Countable group of character $2$

Let $\{0,1\}^{<\omega}$ denote the subgroup of $\{0,1\}^{<\omega}$ where $f:\omega\to\{0,1\}$ is a member $of \{0,1\}^{<\omega}$ if there is $N\in\omega$ such that $f(n)= 0$ for all $n\in\omega$ with $n\geq N$.

If $(G,+) $ is a group with $|G|=\aleph_0$ and $x+x = 0$ for all $g\in G$, does this imply $G\cong \{0,1\}^{<\omega}$?

Countable abelian group of exponent $2$

Let $\{0,1\}^{<\omega}$ denote the subgroup of $\{0,1\}^{<\omega}$ where $f:\omega\to\{0,1\}$ is a member of $\{0,1\}^{<\omega}$ if there is $N\in\omega$ such that $f(n)= 0$ for all $n\in\omega$ with $n\geq N$.

If $(G,+) $ is a group with $|G|=\aleph_0$ and $x+x = 0$ for all $g\in G$, does this imply $G\cong \{0,1\}^{<\omega}$?

Source Link
Loading