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New posts in Group Presentation
Can the map sending a presentation to its group be considered as a functor?
May 09, 2021
Is it possible to prove that a group is the only group of its order given some properties?
May 09, 2021
Presentation for the product of two cyclic groups
May 09, 2021
One missing step in proving $\mathbb{Z}\times \mathbb{Z} \cong \langle a,b\,|\, [a,b]=1\rangle$
May 08, 2021
Find the group with presentation $\langle x, y: xy=yx, x^5=y^3\rangle$.
May 08, 2021
How to approach proofs similar to "Show a group, $G$, is infinite if $G = \langle r, s, t\mid rst = 1\rangle $"
May 08, 2021
Proving the order of quaternion group is 8
May 07, 2021
A question about dihedral group
May 07, 2021
Showing $b^2 \notin \langle a \rangle$ for $V_{8n}=\langle a,b:a^{2n}=e, b^4 = e, ba=a^{-1}b^{-1},b^{-1}a=a^{-1}b\rangle.$
May 07, 2021
Showing $\langle a,p,q\mid p^{-1}ap=a^2, q^{-1}aq=a^2\rangle$ is non-hopfian (from first principles).
May 07, 2021
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