On the complete independence of the postulates for betweenness
W. E. Van De Walle · Transactions of the American Mathematical Society · 1924
fE. V. Huntington and J. R. Kline, Sets of independent postulates for betweenness, these Transactions, vol.18(1917), pp.301-325.For a twelfth set of postulates, which need not here he considered, see E. V. Huntington, A new set of postulates for betweenness with proof of complete independence, in the present number of these Transactions.J For a discussion of the significance of "complete independence", with bibliographical references, see the paper by E.V.Huntington, in the present number of these Transactions.249