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Subject:
From:
David Carlisle <[log in to unmask]>
Reply To:
Mailing list for the LaTeX3 project <[log in to unmask]>
Date:
Wed, 12 Oct 2011 17:22:16 +0100
Content-Type:
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> These may look strange, but turn out to be two objects that are very
> familiar to us: \use_i:nn and \use_ii:nn respectively (or
> \@firstoftwo and \@secondoftwo, for those who still think in 2e terms
> (like me))


http://www.ctan.org/tex-archive/macros/plain/contrib/lambda



\def\First#1#2{#1}
\def\Second#1#2{#2}

\def\Compose#1#2#3{#1{#2{#3}}}

\def\Twiddle#1#2#3{#1{#3}{#2}}

\let\True=\First
\let\False=\Second
\let\Not=\Twiddle



:-)

David

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