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On Certain Commutation Formulæ

Published online by Cambridge University Press:  18 August 2016

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Abstract

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Type
Correspondence
Copyright
Copyright © Institute and Faculty of Actuaries 1860

References

page 116 note * Mr. Sprague has overlooked the circumstance that his (joint life) formula previously appeared in Professor De Morgan's able paper in the Companion to the Almanac for 1842.