diff --git a/package.json b/package.json
index d496d9c..8e8d280 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "fluxduct",
   "type": "module",
-  "version": "0.4.0",
+  "version": "0.5.0",
   "description": "A low-level JSON-safe programming language",
   "main": "src/index.js",
   "module": "src/index.js",
diff --git a/src/constants/conditional-functions.js b/src/constants/conditional-functions.js
deleted file mode 100644
index 4d62c23..0000000
--- a/src/constants/conditional-functions.js
+++ /dev/null
@@ -1,3 +0,0 @@
-import evaluateIf from '../functions/if.js';
-
-export default { if: (dictionary, args) => evaluateIf(dictionary, args) }
diff --git a/src/constants/conditionals.js b/src/constants/conditionals.js
deleted file mode 100644
index 88a1b1e..0000000
--- a/src/constants/conditionals.js
+++ /dev/null
@@ -1 +0,0 @@
-export default new Set(['if']);
diff --git a/src/constants/operator-functions.js b/src/constants/operator-functions.js
deleted file mode 100644
index 3536d6a..0000000
--- a/src/constants/operator-functions.js
+++ /dev/null
@@ -1,11 +0,0 @@
-import add from '../functions/add.js';
-import subtract from '../functions/subtract.js';
-import multiply from '../functions/multiply.js';
-import divide from '../functions/divide.js';
-
-export default { 
-  add: (dictionary, args) => add(dictionary, args),
-  subtract: (dictionary, args) => subtract(dictionary, args),
-  multiply: (dictionary, args) => multiply(dictionary, args),
-  divide: (dictionary, args) => divide(dictionary, args),
-}
diff --git a/src/functions/add.js b/src/functions/add.js
deleted file mode 100644
index 4827ae3..0000000
--- a/src/functions/add.js
+++ /dev/null
@@ -1,3 +0,0 @@
-import evaluate from './evaluate.js';
-
-export default (dictionary, [a, b]) => evaluate(dictionary, a) + evaluate(dictionary, b);
diff --git a/src/functions/add.test.js b/src/functions/add.test.js
deleted file mode 100644
index 08e2cd5..0000000
--- a/src/functions/add.test.js
+++ /dev/null
@@ -1,7 +0,0 @@
-import { strict as assert } from 'assert';
-
-import add from './add.js';
-
-export default {
-  'can add two basic paths': () => assert.equal(add({ foo: 1, bar: 4 }, [{ path: ['foo'] }, { path: ['bar'] }]), 5)
-}
diff --git a/src/functions/divide.js b/src/functions/divide.js
deleted file mode 100644
index ea9ff4d..0000000
--- a/src/functions/divide.js
+++ /dev/null
@@ -1,3 +0,0 @@
-import evaluate from './evaluate.js';
-
-export default (dictionary, [a, b]) => evaluate(dictionary, a) / evaluate(dictionary, b);
diff --git a/src/functions/divide.test.js b/src/functions/divide.test.js
deleted file mode 100644
index e889573..0000000
--- a/src/functions/divide.test.js
+++ /dev/null
@@ -1,7 +0,0 @@
-import { strict as assert } from 'assert';
-
-import divide from './divide.js';
-
-export default {
-  'can divide two basic paths': () => assert.equal(divide({ foo: 4, bar: 4 }, [{ path: ['foo'] }, { path: ['bar'] }]), 1)
-}
diff --git a/src/functions/if.js b/src/functions/if.js
deleted file mode 100644
index ac89b42..0000000
--- a/src/functions/if.js
+++ /dev/null
@@ -1,7 +0,0 @@
-import evaluate from './evaluate.js';
-
-export default (dictionary, [a, ...args]) => {
-  a = evaluate(dictionary, a, 'boolean');
-  const [b, c] = args.map(arg => evaluate(dictionary, arg));
-  return a ? b : c;
-}
\ No newline at end of file
diff --git a/src/functions/if.test.js b/src/functions/if.test.js
deleted file mode 100644
index 0af08e5..0000000
--- a/src/functions/if.test.js
+++ /dev/null
@@ -1,7 +0,0 @@
-import { strict as assert } from 'assert';
-
-import evaluateIf from './if.js';
-
-export default {
-  'can evaluate a basic if': () => assert.equal(evaluateIf({ foo: 1, bar: 4, baz: true }, [{ path: ['baz'] }, { path: ['foo'] }, { path: ['bar'] }]), 1)
-}
diff --git a/src/functions/multiply.js b/src/functions/multiply.js
deleted file mode 100644
index 91ddcd0..0000000
--- a/src/functions/multiply.js
+++ /dev/null
@@ -1,3 +0,0 @@
-import evaluate from './evaluate.js';
-
-export default (dictionary, [a, b]) => evaluate(dictionary, a) * evaluate(dictionary, b);
diff --git a/src/functions/multiply.test.js b/src/functions/multiply.test.js
deleted file mode 100644
index 4d79dcf..0000000
--- a/src/functions/multiply.test.js
+++ /dev/null
@@ -1,7 +0,0 @@
-import { strict as assert } from 'assert';
-
-import multiply from './multiply.js';
-
-export default {
-  'can multiply two basic paths': () => assert.equal(multiply({ foo: 1, bar: 4 }, [{ path: ['foo'] }, { path: ['bar'] }]), 4)
-}
diff --git a/src/functions/subtract.js b/src/functions/subtract.js
deleted file mode 100644
index 6f42404..0000000
--- a/src/functions/subtract.js
+++ /dev/null
@@ -1,3 +0,0 @@
-import evaluate from './evaluate.js';
-
-export default (dictionary, [a, b]) => evaluate(dictionary, a) - evaluate(dictionary, b);
diff --git a/src/functions/subtract.test.js b/src/functions/subtract.test.js
deleted file mode 100644
index e2bb003..0000000
--- a/src/functions/subtract.test.js
+++ /dev/null
@@ -1,7 +0,0 @@
-import { strict as assert } from 'assert';
-
-import subtract from './subtract.js';
-
-export default {
-  'can subtract two basic paths': () => assert.equal(subtract({ foo: 1, bar: 4 }, [{ path: ['foo'] }, { path: ['bar'] }]), -3)
-}