Finally remove all mentions of the old polytypes module.

It was merged with types long ago.

docs/Types.ipynb

@@ -3684,16 +3684,28 @@
    "metadata": {},
    "source": [
     "#### Work in Progress\n",
-    "And that brings us to current Work-In-Progress.  The mixed-mode inferencer/interpreter `infer()` function seems to work well.  There are details I should document, and the rest of the code in the \"polytypes\" module (FIXME link to its docs here!) should be explained...  There is cruft to convert the definitions in `DEFS` to the new `SymbolJoyType` objects, and some combinators.  Here is an example of output from the current code :"
+    "And that brings us to current Work-In-Progress.  The mixed-mode inferencer/interpreter `infer()` function seems to work well.  There are details I should document, and the rest of the code in the `types` module (FIXME link to its docs here!) should be explained...  There is cruft to convert the definitions in `DEFS` to the new `SymbolJoyType` objects, and some combinators.  Here is an example of output from the current code :"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 1,
    "metadata": {
     "scrolled": true
    },
-   "outputs": [],
+   "outputs": [
+    {
+     "ename": "ZeroDivisionError",
+     "evalue": "integer division or modulo by zero",
+     "output_type": "error",
+     "traceback": [
+      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
+      "\u001b[0;31mZeroDivisionError\u001b[0m                         Traceback (most recent call last)",
+      "\u001b[0;32m<ipython-input-1-9a9d60354c35>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m()\u001b[0m\n\u001b[0;32m----> 1\u001b[0;31m \u001b[0;36m1\u001b[0m\u001b[0;34m/\u001b[0m\u001b[0;36m0\u001b[0m  \u001b[0;31m# (Don't try to run this cell!  It's not going to work.  This is \"read only\" code heh..)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m      2\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      3\u001b[0m \u001b[0mlogging\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mbasicConfig\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mformat\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0;34m'%(message)s'\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mstream\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0msys\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mstdout\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mlevel\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mlogging\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mINFO\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      4\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      5\u001b[0m \u001b[0mglobals\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mupdate\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mFUNCTIONS\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
+      "\u001b[0;31mZeroDivisionError\u001b[0m: integer division or modulo by zero"
+     ]
+    }
+   ],
    "source": [
     "1/0  # (Don't try to run this cell!  It's not going to work.  This is \"read only\" code heh..)\n",
     "\n",
@@ -3790,7 +3802,7 @@
    "source": [
     "## Appendix: Joy in the Logical Paradigm\n",
     "\n",
-    "For *type checking* to work the type label classes have to be modified to let `T >= t` succeed, where e.g. `T` is `IntJoyType` and `t` is `int`.  If you do that you can take advantage of the *logical relational* nature of the stack effect comments to \"compute in reverse\" as it were.  There's a working demo of this at the end of the `polytypes` module.  But if you're interested in all that you should just use Prolog!\n",
+    "For *type checking* to work the type label classes have to be modified to let `T >= t` succeed, where e.g. `T` is `IntJoyType` and `t` is `int`.  If you do that you can take advantage of the *logical relational* nature of the stack effect comments to \"compute in reverse\" as it were.  There's a working demo of this at the end of the `types` module.  But if you're interested in all that you should just use Prolog!\n",
     "\n",
     "Anyhow, type *checking* is a few easy steps away."
    ]
@@ -3828,7 +3840,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython2",
-   "version": "2.7.15"
+   "version": "2.7.12"
   }
  },
  "nbformat": 4,