Is the following isomorphism true?
30327
$\ker \phi = (x_1-a_1, ..., x_n-a_n)$ for a ring homomorphism $\phi: R[x_1, ..., x_n] \to R$
112125
In an extension field, is there any difference between the original field and its isomorphic copy in the extension field?
84869
Are the groups $\mathbb{C}$ and $\mathbb{R}$ isomorphic?
32302
Neukirch’s Number Theory – why is $ℂ \otimes_ℚ K → K_ℂ,~z \otimes a ↦ (j(z)a)_τ$ an isomorphism?
96047
Why are two universal objects isomorphic?
126098
Isomorphism of factor groups
18415
Direct sum of Abelian groups and Isomorphism
107511
If $G$ and $H$ are nonisomorphic group with same order then can we say that $Aut(G)$ is not isomorphic to $Aut(H)$?
93017
Isomorphism between $\Bbb R$ and $\Bbb R(X)$?
145462
On the canonical isomorphism between $V$ and $V^{**}$
44983
Isomorphism of R-modules
154318
Can a field be isomorphic to its subfield?
65968
Prove that any two cyclic groups of the same order are isomorphic?
25439
f(a) = inverse of a is an isomorphism iff a group G is Abelian
59995
Isomorphism between $\mathbb{C}^* $ under multiplication with $\mathbb{C}$ under addition.
47720
Isomorphism from Natural numbers to the Odd Natural numbers
70872
Isomorphism of quotient modules implies isomorphism of submodules?