2 unstable releases
0.2.0 | Aug 30, 2023 |
---|---|
0.1.0 | Aug 29, 2023 |
#1434 in Rust patterns
23KB
247 lines
Propositional Logic
A rust library for generating the truth table of any single compound proposition.
only has one dependency: cli_table
Usage
truth_table! macro
this macro only creates and returns the truth table.
use propositional_logic::prelude::*;
use cli_table::{print_stdout, TableStruct};
let compound_proposition = |p, q, r| -> bool { iff(q, (p && !q) || (!p && q)) && r };
// giving it a function (any function with boolean input and output works, technically)
let table: TableStruct = truth_table!(|p, q, r| => compound_proposition);
// giving it an inline proposition (similar to a closure)
let table: TableStruct = truth_table!(|p, q, r| => inline_compound_proposition -> {
iff(q, (p && !q) || (!p && q)) && r
});
// giving it both (you can give it as many as you want)
let table: TableStruct = truth_table!(|p, q, r| => {
compound_proposition,
inline_compound_proposition -> {
iff(q, (p && !q) || (!p && q)) && r
}
});
assert!(print_stdout(table).is_ok());
Outputs:
+-------+-------+-------+----------------------+-----------------------------+
| p | q | r | compound_proposition | inline_compound_proposition |
+-------+-------+-------+----------------------+-----------------------------+
| true | true | true | false | false |
+-------+-------+-------+----------------------+-----------------------------+
| true | true | false | false | false |
+-------+-------+-------+----------------------+-----------------------------+
| true | false | true | false | false |
+-------+-------+-------+----------------------+-----------------------------+
| true | false | false | false | false |
+-------+-------+-------+----------------------+-----------------------------+
| false | true | true | true | true |
+-------+-------+-------+----------------------+-----------------------------+
| false | true | false | false | false |
+-------+-------+-------+----------------------+-----------------------------+
| false | false | true | true | true |
+-------+-------+-------+----------------------+-----------------------------+
| false | false | false | false | false |
+-------+-------+-------+----------------------+-----------------------------+
print_truth_table! macro
use propositional_logic::prelude::*;
let compound_proposition = |p, q| -> bool { iff(q, p) };
// giving it a function (any function with boolean input and output works, technically)
print_truth_table!(|p, q| => compound_proposition);
println!();
// giving it an inline proposition (similar to a closure)
print_truth_table!(|p| => inline_compound_proposition -> {
not(p)
});
println!();
// giving it both (you can give it as many as you want, but every item must have a comma at the end (even the last one))
print_truth_table!(|p,q| => {
compound_proposition,
inline_compound_proposition -> {
not(p)
},
});
Output:
+-------+-------+----------------------+
| p | q | compound_proposition |
+-------+-------+----------------------+
| true | true | true |
+-------+-------+----------------------+
| true | false | false |
+-------+-------+----------------------+
| false | true | false |
+-------+-------+----------------------+
| false | false | true |
+-------+-------+----------------------+
+-------+-----------------------------+
| p | inline_compound_proposition |
+-------+-----------------------------+
| true | false |
+-------+-----------------------------+
| false | true |
+-------+-----------------------------+
+-------+-------+----------------------+-----------------------------+
| p | q | compound_proposition | inline_compound_proposition |
+-------+-------+----------------------+-----------------------------+
| true | true | true | false |
+-------+-------+----------------------+-----------------------------+
| true | false | false | false |
+-------+-------+----------------------+-----------------------------+
| false | true | false | true |
+-------+-------+----------------------+-----------------------------+
| false | false | true | true |
+-------+-------+----------------------+-----------------------------+
Dependencies
~1.7–9.5MB
~64K SLoC