reserve p,q for Rational;
reserve g,m,m1,m2,n,n1,n2 for Nat;
reserve i,i1,i2,j,j1,j2 for Integer;
reserve R for Ring, F for Field;

theorem
for f being Homomorphism of INT.Ring,INT.Ring holds f = id INT.Ring
proof
canHom_Int INT.Ring = id INT.Ring by Th83;
hence thesis by Th83;
end;
