Added a lot of shit

src/lib/truthtable.typ

@@ -0,0 +1,35 @@
+#let truth-table(outputs: (), inputs: none) = {
+  let variables = calc.max(..outputs.map(output => calc.ceil(calc.log(output.at(1).len()) / calc.log(2))))
+
+  if inputs == none {
+    inputs = ($a$, $b$, $c$, $d$).slice(0, variables)
+  }
+
+  assert(outputs.len() >= 1, message: "There has to be at least one output")
+  assert(inputs.len() == variables, message: "There aren't enough variables to label")
+
+  let num-to-bin(x, digits) = {
+    let bits = ()
+
+    while x != 0 {
+      bits.push(calc.rem(x, 2))
+
+      x = calc.floor(x / 2)
+    }
+
+    range(digits).map(x => bits.at(digits - x - 1, default: 0))
+  }
+
+  table(
+    columns: (auto,) * (variables + outputs.len()),
+    stroke: (x, y) => (
+      left: if x == variables { 1pt } else if x > 0 { 0.5pt },
+      top: if y == 1 { 1pt } else if y > 0 { 0.5pt },
+    ),
+    inset: 4pt,
+    if inputs != none { table.header(..inputs.map(x => [#x]), ..outputs.map(((x, _)) => [#x])) },
+    ..range(calc.pow(2, variables))
+      .map(x => (..num-to-bin(x, variables).map(y => [#y]), ..outputs.map(((_, y)) => [#y.at(x, default: [])])))
+      .flatten()
+  )
+}