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ockham_algebras [2011/08/11 12:18]
jipsen
ockham_algebras [2012/06/16 02:49] (current)
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-$'$ is a dual endomprphism:  +$'$ is a dual endomorphism:  
$(x\wedge y)' =x'\vee y'$, $ $(x\wedge y)' =x'\vee y'$, $
(x\vee y)' =x'\wedge y'$, $ (x\vee y)' =x'\wedge y'$, $