同種の代数系の間の準同型写像（準写）: 定義域上の演算の後に写像した値と、写像した後に値域上の演算を行って得た値が一致する写像。 An Algebraic Expression Includes An Not known Quantity An algebraic expression can involve numbers, operations, and variables. Allow’s say a piggy financial institution has at least $4 in it, but there’s some unidentified total much more than that during the b... https://www.facebook.com/NewTechFind/posts/pfbid02RTXKpsLzBbmsaAd9g7bzBpbXncP5x787MoVrYexJBM4mzq2oJBt7UxWEPhq6mup9l