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<body class='hmmessage'><div dir='ltr'><div>Hi </div><div><br></div><div>i use book polynomial completeness in algebraic system,</div><div><br></div><div>it mentions to create variety first then it can create algebra</div><div><br></div><div><br></div><div>f(x,y,x) = f(x,y,y) = x</div><div>f(z,y,z) = f(y,y,z) = z</div><div><br></div><div>variety with pixley term t and t(x,t(x,y,z),y) = y</div><div><br></div><div>pair of equivalence relations must satisfy x*y = y*x this permute</div><div><br></div><div>i search code in agda standard library, there is no variety this name, </div><div>is it using another method to create algebra?</div><div><br></div><div>Regards,</div><div><br></div><div>Martin Lee</div>                                            </div></body>
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