@testset "FPGroups definitions" begin F = FreeGroup(["a", "b", "c"]) a,b,c = gens(F) R = [a^2, a*b*a, c*b*a] @test F/R isa FPGroup @test F isa FreeGroup G = F/R A,B,C = gens(G) @test A^2 == one(G) @test A*B*A*A == A @test A*A*B*A == B*A @test G/[B^2, C*B*C] isa FPGroup end