︠78828d23-78b0-4f7e-a3b5-df636e257e80s︠ K. = GF(25) L. = GF(25) phi = K.hom([y]) phi(x + 3) ︡f2ae8d56-52e1-42e3-a811-e171c2285e6f︡{"stdout":"y + 3\n"}︡ ︠178397be-9918-4210-964d-8a429a6d32ffs︠ psi = K.hom([y^2]) ︡f33c6e14-cafa-4072-9a74-1088ffd7edd4︡{"stderr":"Error in lines 1-1\nTraceback (most recent call last):\n File \"/projects/4a5f0542-5873-4eed-a85c-a18c706e8bcd/.sagemathcloud/sage_server.py\", line 879, in execute\n exec compile(block+'\\n', '', 'single') in namespace, locals\n File \"\", line 1, in \n File \"sage/structure/parent_gens.pyx\", line 463, in sage.structure.parent_gens.ParentWithGens.hom (build/cythonized/sage/structure/parent_gens.c:4944)\n return parent.Parent.hom(self, im_gens, codomain, check)\n File \"sage/structure/parent.pyx\", line 1729, in sage.structure.parent.Parent.hom (build/cythonized/sage/structure/parent.c:13038)\n return self.Hom(codomain)(im_gens, check=check)\n File \"/projects/sage/sage-6.7/local/lib/python2.7/site-packages/sage/rings/finite_rings/homset.py\", line 100, in __call__\n raise TypeError(\"images do not define a valid homomorphism\")\nTypeError: images do not define a valid homomorphism\n"}︡ ︠1ddfc11e-cc9d-4bdb-9728-df81d475406e︠