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diff --git a/Master/texmf-dist/doc/asymptote/examples/venn3.asy b/Master/texmf-dist/doc/asymptote/examples/venn3.asy
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+size(0,150);
+
+pen colour1=red;
+pen colour2=green;
+pen colour3=blue;
+
+real r=sqrt(3);
+
+pair z0=(0,0);
+pair z1=(-1,0);
+pair z2=(1,0);
+pair z3=(0,r);
+
+path c1=circle(z1,r);
+path c2=circle(z2,r);
+path c3=circle(z3,r);
+
+fill(c1,colour1);
+fill(c2,colour2);
+fill(c3,colour3);
+
+picture intersection12;
+fill(intersection12,c1,colour1+colour2);
+clip(intersection12,c2);
+
+picture intersection13;
+fill(intersection13,c1,colour1+colour3);
+clip(intersection13,c3);
+
+picture intersection23;
+fill(intersection23,c2,colour2+colour3);
+clip(intersection23,c3);
+
+picture intersection123;
+fill(intersection123,c1,colour1+colour2+colour3);
+clip(intersection123,c2);
+clip(intersection123,c3);
+
+add(intersection12);
+add(intersection13);
+add(intersection23);
+add(intersection123);
+
+draw(c1);
+draw(c2);
+draw(c3);
+
+label("$A$",z1);
+label("$B$",z2);
+label("$C$",z3);