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System F mostly done
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@ -64,24 +64,85 @@
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d.h. wir w\"urden hier beim ersten Argument weitermachen und "mult" aufl\"osen
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(beim zweiten g\"abe es gerade auch gar nichts mehr zu machen)
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\subsection*{2) Typherleitung}
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$
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\{
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f
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\}
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\subsection*{2) Typherleitung - SS14 Beispiel}
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\textbf{Typherleitung f\"ur:}
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\[
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\{
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\,mult\;:\;
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\mathrm{N}\rightarrow\mathrm{N}\rightarrow\mathrm{N},\;
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one\; : \; \mathrm{N},\,two\;\mathrm{N}\,
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\vdash \; \lambda n.\,n\,(\, mult \; two\,)\;one\,:\mathrm{N}\rightarrow
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\mathrm{N}
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\}
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\]
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\textbf{mit Sonderhinweis, dass die Chruch-Numerale in System F den folgenden Typ besitzen:}
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\[
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\mathrm{N}\; := \; \forall a.(a\,\rightarrow \, a)\, \rightarrow \, a \, \rightarrow \,a
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\]
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\textbf{Herleitung:}\\
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%Zeile 5
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\underline{
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$(5)\;
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\Gamma \;\cup \{\,n:\mathrm{N}\,\} \vdash
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\overbrace{
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n\,:\,(\,a\,\rightarrow\,a\,)\rightarrow (\,a\,\rightarrow \,a\,)
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}^{per\;Definition\; =\;\mathrm{N}}
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\hspace{1cm}
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\overbrace{
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mult:\;\mathrm{N}\rightarrow \mathrm{N}\rightarrow \mathrm{N}
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}^{Ax}
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\hspace{5mm}
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\overbrace{
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two:\;\mathrm{N}
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}^{Ax}
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$
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}\\
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%Zeile 4
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\underline{
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$(4)\;
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\Gamma \;\cup \{\,n:\mathrm{N}\,\} \vdash
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n\,:\,(\,\mathrm{N}\rightarrow \mathrm{N}\,)
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\rightarrow (\,\mathrm{N}\rightarrow \mathrm{N}\,)
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\hspace{2cm}
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mult\;two\;\mathrm{N}\rightarrow \mathrm{N}
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$
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}\\
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%Zeile 3
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\underline{
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$ (3)\;
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\Gamma \; \cup \{\,n:\mathrm{N}\,\}\,
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\vdash \, n\,(\,mult\;two\,)\,: \mathrm{N}\rightarrow\,\mathrm{N}
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\hspace{6cm}
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\;one\; : \mathrm{N}
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$
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}\\
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%Zeile 2
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\underline{
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$(2)\;
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\Gamma \; \cup \{\,n:\mathrm{N}\,\}\,
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\vdash \, n\,(\,mult\;two\,)\;one\; : \mathrm{N}\rightarrow\,\mathrm{N}
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$\hspace{48mm}}
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\\
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%Zeile 1
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$
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\{
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\,mult\;:\;
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\mathrm{N}\rightarrow\mathrm{N}\rightarrow\mathrm{N}\rightarrow ,
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one\; : \; \mathrm{N},\,two\;\mathrm{N}\,
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\}
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$ (1)\;
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\{
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\underbrace{
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\,mult\;:\;
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\mathrm{N}\rightarrow\mathrm{N}\rightarrow\mathrm{N},\;
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one\; : \; \mathrm{N},\,two\;\mathrm{N}\,
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}_{:=\Gamma}
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\vdash \; \lambda n.\,n\,(\, mult \; two\,)\;one\,:\mathrm{N}\rightarrow\mathrm{N}
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$
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$
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\\
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\textbf{Erkl\"arungen:}\\
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\begin{small}
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- (1) $\rightarrow_{i}$\\
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- (2)(3) $\rightarrow_e$\\
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- in (3) ist $[\,one:\mathrm{N}\,]$ mit Ax fertig\\
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- in (4) ???\\
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- (4)(links) $\forall_{e}$ (rechts) $\rightarrow_e$\\
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\end{small}
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@ -89,11 +150,7 @@
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$ $\\\\
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\begin{tiny}
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\copyright\ Joint-Troll-Expert-Group (JTEG) 2015
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\end{tiny}
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