Fix typos (recieve, possitive, grammer)

agents.ipynb

@@ -96,7 +96,7 @@
     "\n",
     "* `is_done(self)`: Returns true if the objective of the agent and the environment has been completed\n",
     "\n",
-    "The next two functions must be implemented by each subclasses of `Environment` for the agent to recieve percepts and execute actions \n",
+    "The next two functions must be implemented by each subclasses of `Environment` for the agent to receive percepts and execute actions \n",
     "\n",
     "* `percept(self, agent)`: Given an agent, this method returns a list of percepts that the agent sees at the current time\n",
     "\n",

knowledge_foil.ipynb

@@ -96,7 +96,7 @@
     "   $$ FoilGain(L,R) = t \\big( \\log_2{\\frac{p_1}{p_1+n_1}} - \\log_2{\\frac{p_0}{p_0+n_0}} \\big) $$\n",
     "      where: \n",
     "      \n",
-    "      $p_0: \\text{is the number of possitive bindings of rule R } \\\\ n_0: \\text{is the number of negative bindings of R} \\\\ p_1: \\text{is the is the number of possitive bindings of rule R'}\\\\ n_0: \\text{is the number of negative bindings of R'}\\\\ t: \\text{is the number of possitive bindings of rule R that are still covered after adding literal L to R}$\n",
+    "      $p_0: \\text{is the number of positive bindings of rule R } \\\\ n_0: \\text{is the number of negative bindings of R} \\\\ p_1: \\text{is the is the number of positive bindings of rule R'}\\\\ n_0: \\text{is the number of negative bindings of R'}\\\\ t: \\text{is the number of positive bindings of rule R that are still covered after adding literal L to R}$\n",
     "   \n",
     "   - Calculate the extended examples for the chosen literal <font color ='blue'>(function __extend_example()__) </font> <br>\n",
     "        (the set of examples created by extending example with each possible constant value for each new variable in literal)\n",
@@ -286,11 +286,11 @@
        "\n",
        "<span class=\"sd\">        where: </span>\n",
        "<span class=\"sd\">        </span>\n",
-       "<span class=\"sd\">            pre_pos = number of possitive bindings of rule R (=current set of rules)</span>\n",
+       "<span class=\"sd\">            pre_pos = number of positive bindings of rule R (=current set of rules)</span>\n",
        "<span class=\"sd\">            pre_neg = number of negative bindings of rule R </span>\n",
-       "<span class=\"sd\">            post_pos = number of possitive bindings of rule R&#39; (= R U {l} )</span>\n",
+       "<span class=\"sd\">            post_pos = number of positive bindings of rule R&#39; (= R U {l} )</span>\n",
        "<span class=\"sd\">            post_neg = number of negative bindings of rule R&#39; </span>\n",
-       "<span class=\"sd\">            T = number of possitive bindings of rule R that are still covered </span>\n",
+       "<span class=\"sd\">            T = number of positive bindings of rule R that are still covered </span>\n",
        "<span class=\"sd\">                after adding literal l </span>\n",
        "\n",
        "<span class=\"sd\">        &quot;&quot;&quot;</span>\n",

notebooks/chapter22/Parsing.ipynb

@@ -356,7 +356,7 @@
    "source": [
     "### Example\n",
     "\n",
-    "Now let's try \"the wumpus is dead\" example. First we need to define the grammer and words in the sentence."
+    "Now let's try \"the wumpus is dead\" example. First we need to define the grammar and words in the sentence."
    ]
   },
   {

tests/test_nlp4e.py

@@ -127,12 +127,12 @@ def test_subspan():
 
 def test_text_parsing():
     words = ["the", "wumpus", "is", "dead"]
-    grammer = E0
-    assert astar_search_parsing(words, grammer) == 'S'
-    assert beam_search_parsing(words, grammer) == 'S'
+    grammar = E0
+    assert astar_search_parsing(words, grammar) == 'S'
+    assert beam_search_parsing(words, grammar) == 'S'
     words = ["the", "is", "wupus", "dead"]
-    assert astar_search_parsing(words, grammer) is False
-    assert beam_search_parsing(words, grammer) is False
+    assert astar_search_parsing(words, grammar) is False
+    assert beam_search_parsing(words, grammar) is False
 
 
 if __name__ == '__main__':