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Published online by Cambridge University Press: 18 August 2016
Page 543 note * The value of “a” corresponding to any particular values of w 1, w 2 and w 3 represents the value of a joint life annuity on four lives of ages such that the equal ages with respect to c 1, c 2 and c 3 are w 1, w 2 and w 3 respectively.