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Using the point A and the point Tb, construct a line b (rule W02);
% DET: points A and Tb are not the same
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Using the point A and the point Tc, construct a line c (rule W02);
% DET: points A and Tc are not the same
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Using the line b, the point Tc, the point A, the point Tb and the line c, construct a line sa (rule W17);
% NDG: points A and Tb are not the same points Tc and A are not the same
% DET: points A and Tc are not the same
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Using the point Tc, the point A and the point Tb, construct a circle circle[Tb,Tc,angle[s[b]][s[c]]] (rule W20);
% NDG: points Tc and A are not the same points A and Tb are not the same points Tb and Tc are not the same
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Using the circle circle[Tb,Tc,angle[s[b]][s[c]]] and the line sa, construct a point Asa and a point I (rule W04);
% NDG: line sa and circle circle[Tb,Tc,angle[s[b]][s[c]]] intersect
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Using the point I and the point Tb, construct a line sb (rule W02);
% DET: points I and Tb are not the same
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Using the point Tc and the point I, construct a line sc (rule W02);
% DET: points Tc and I are not the same
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Using the line b and the line sc, construct a point C (rule W03);
% NDG: lines b and sc are not parallel
% DET: lines b and sc are not the same
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Using the line c and the line sb, construct a point B (rule W03);
% NDG: lines c and sb are not parallel
% DET: lines c and sb are not the same