logic/readme.md
hi dff5b9f365 cabal
only doing this because Data.Set is not in the stdlib
2025-08-15 13:10:36 +00:00

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# statement logic !!!
see [Logic/readme.md](Logic) for more details about what's here
## requirements
- a haskell compiler e.g. GHC
- cabal the haskell build system if you want
- [containers](https://hackage.haskell.org/package/containers)
## compile it
```sh
make
```
or look in [`Makefile`](Makefile)
or
```sh
cabal build
```
I guess...
## usage
only this kind of this has been implemented in the main function so far:
```sh
echo '((p->q)<->(!q->!p))' | ./logic
```
### output
```
Iff (Implies (Atom "p") (Atom "q")) (Implies (Not (Atom "q")) (Not (Atom "p")))
Tautology
\begin{tabular}{cc||cccccc|c|cccccccc}
$p$ & $q$ & $($ & $($ & $p$ & $\to $ & $q$ & $)$ & $\leftrightarrow $ & $($ & $\neg $ & $q$ & $\to $ & $\neg $ & $p$ & $)$ & $)$ \\
\hline
0 & 0 & & & 0 & 1 & 0 & & \textbf 1 & & 1 & 0 & 1 & 1 & 0 & & \\
0 & 1 & & & 1 & 0 & 0 & & \textbf 1 & & 1 & 0 & 0 & 0 & 1 & & \\
1 & 0 & & & 0 & 1 & 1 & & \textbf 1 & & 0 & 1 & 1 & 1 & 0 & & \\
1 & 1 & & & 1 & 1 & 1 & & \textbf 1 & & 0 & 1 & 1 & 0 & 1 & & \\
\end{tabular}
```