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Revision as of 18:00, 7 May 2009
, 18:00, 7 May 2009→Commentary Note 12.5
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<math>\begin{matrix}
<math>\begin{matrix}
(a \,\Leftarrow\, b) \,\Leftarrow\, c & = & a \,\Leftarrow\, b \land c
\\[8pt]
(a >\!\!\!-~ b) >\!\!\!-~ c & = & a >\!\!\!-~ bc
(a >\!\!\!-~ b) >\!\!\!-~ c & = & a >\!\!\!-~ bc
\\[8pt]
\\[8pt]
