diff --git a/README.md b/README.md
index e43ebb5..68c0e70 100644
--- a/README.md
+++ b/README.md
@@ -2147,7 +2147,7 @@ union_of_sets    = functools.reduce(op.or_, <coll_of_sets>)
 last_element     = op.methodcaller('pop')(<list>)
 ```
 * **Functions and\_() and or\_() correspond to operators '&' and '|'.**
-* **They only work on objects with defined and() and or() special methods, ie. ints and sets.**
+* **They only work on objects with defined and() and or() special methods, i.e. ints and sets.**
 
 
 Introspection
diff --git a/index.html b/index.html
index 08b9223..fc1151d 100644
--- a/index.html
+++ b/index.html
@@ -1920,7 +1920,7 @@ last_element     = op.methodcaller(<span class="hljs-string">'pop'</span>)(&lt;l
 </code></pre>
 <ul>
 <li><strong>Functions and_() and or_() correspond to operators '&amp;' and '|'.</strong></li>
-<li><strong>They only work on objects with defined and() and or() special methods, ie. ints and sets.</strong></li>
+<li><strong>They only work on objects with defined and() and or() special methods, i.e. ints and sets.</strong></li>
 </ul>
 <div><h2 id="introspection"><a href="#introspection" name="introspection">#</a>Introspection</h2><p><strong>Inspecting code at runtime.</strong></p><div><h3 id="variables">Variables</h3><pre><code class="python language-python hljs">&lt;list&gt; = dir()                             <span class="hljs-comment"># Names of local variables (incl. functions).</span>
 &lt;dict&gt; = vars()                            <span class="hljs-comment"># Dict of local variables. Also locals().</span>