Let us now run through the propositional specification of Stunt(2),
+
Let us now run through the propositional specification of <math>\operatorname{Stunt}(2),</math> our truncated TM, and paraphrase what it says in ordinary language.
−
our truncated TM, and paraphrase what it says in ordinary language.
−
Mediate Conditions:
+
'''Mediate Conditions'''
−
( p0_q# ( p1_q# ))
+
{| align="center" cellpadding="8" width="90%"
−
( p0_q* ( p1_q* ))
+
|
−
+
<math>\begin{array}{l}
−
( p1_q# ( p2_q# ))
+
\texttt{(~p0\_q\#~(~p1\_q\#~))}
−
( p1_q* ( p2_q* ))
+
\\
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\texttt{(~p0\_q*~(~p1\_q*~))}
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\\ \\
+
\texttt{(~p1\_q\#~(~p2\_q\#~))}
+
\\
+
\texttt{(~p1\_q*~(~p2\_q*~))}
+
\end{array}</math>
+
|}
+
<pre>
In the interpretation of the cactus language for propositional logic
In the interpretation of the cactus language for propositional logic
that we are using here, an expression of the form "(p (q))" expresses
that we are using here, an expression of the form "(p (q))" expresses