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Enumerations Reference
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<section>
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<h1>Enumerations</h1>
<p>The following enumerations are available globally.</p>
</section>
<section class="section task-group-section">
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<ul>
<li class="item">
<div>
<code>
<a name="/s:9FuzzySets13TNormFunctionO"></a>
<a name="//apple_ref/swift/Enum/TNormFunction" class="dashAnchor"></a>
<a class="token" href="#/s:9FuzzySets13TNormFunctionO">TNormFunction</a>
</code>
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<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Describes a T-norm function, usually used for forming an intersection of fuzzy sets.</p>
<p>A function <code>T</code> must satisfy the following axioms in order to be T-normed:</p>
<ol>
<li>Boundary condition: <code>T(1, 1) = 1</code>, <code>T(1, 0) = 0</code>, <code>T(0, 1) = 0</code>, <code>T(0, 0) = 0</code></li>
<li>Commutativity: <code>T(a, b) = T(b, a)</code></li>
<li>Monotonic: <code>If a &lt;= a&#39; and b &lt;= b&#39; Then T(a, b) &lt;= T(a&#39;, b&#39;)</code></li>
<li>Associativity: <code>T(T(a, b), c) = T(a, T(b, c))</code></li>
</ol>
<a href="Enums/TNormFunction.html" class="slightly-smaller">See more</a>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">enum</span> <span class="kt">TNormFunction</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:9FuzzySets13SNormFunctionO"></a>
<a name="//apple_ref/swift/Enum/SNormFunction" class="dashAnchor"></a>
<a class="token" href="#/s:9FuzzySets13SNormFunctionO">SNormFunction</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Describes a S-norm (T-conorm) function, usually used for forming a union of fuzzy sets.</p>
<p>A function <code>S</code> must satisfy the following axioms in order to be S-normed (T-conormed):</p>
<ol>
<li>Boundary condition: <code>S(1, 1) = 1</code>, <code>S(1, 0) = 1</code>, <code>S(0, 1) = 1</code>, <code>S(0, 0) = 0</code></li>
<li>Commutativity: <code>S(a, b) = S(b, a)</code></li>
<li>Monotonic: <code>If a &lt;= a&#39; and b &lt;= b&#39; Then S(a, b) &lt;= S(a&#39;, b&#39;)</code></li>
<li>Associativity: <code>S(T(a, b), c) = S(a, T(b, c))</code></li>
</ol>
<a href="Enums/SNormFunction.html" class="slightly-smaller">See more</a>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">enum</span> <span class="kt">SNormFunction</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:9FuzzySets18ComplementFunctionO"></a>
<a name="//apple_ref/swift/Enum/ComplementFunction" class="dashAnchor"></a>
<a class="token" href="#/s:9FuzzySets18ComplementFunctionO">ComplementFunction</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Describes a complement (negation) function, usually used for forming a complement (negation) of a fuzzy set.</p>
<p>A function <code>c</code> must satisfy the following axioms in order to be capable of negating a fuzzy set:</p>
<ol>
<li>Boundary condition: <code>c(0) = 1</code>, <code>c(1) = 0</code></li>
<li>Monotonic nonincreasing: <code>a &lt; b -&gt; c(a) &gt;= c(b)</code></li>
<li>Involution: <code>c(c(a)) = a</code></li>
</ol>
<a href="Enums/ComplementFunction.html" class="slightly-smaller">See more</a>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">enum</span> <span class="kt">ComplementFunction</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:9FuzzySets18DifferenceFunctionO"></a>
<a name="//apple_ref/swift/Enum/DifferenceFunction" class="dashAnchor"></a>
<a class="token" href="#/s:9FuzzySets18DifferenceFunctionO">DifferenceFunction</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Undocumented</p>
<a href="Enums/DifferenceFunction.html" class="slightly-smaller">See more</a>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">enum</span> <span class="kt">DifferenceFunction</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:9FuzzySets27SymmetricDifferenceFunctionO"></a>
<a name="//apple_ref/swift/Enum/SymmetricDifferenceFunction" class="dashAnchor"></a>
<a class="token" href="#/s:9FuzzySets27SymmetricDifferenceFunctionO">SymmetricDifferenceFunction</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Undocumented</p>
<a href="Enums/SymmetricDifferenceFunction.html" class="slightly-smaller">See more</a>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">enum</span> <span class="kt">SymmetricDifferenceFunction</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:14FuzzyRelations17CompositionMethodO"></a>
<a name="//apple_ref/swift/Enum/CompositionMethod" class="dashAnchor"></a>
<a class="token" href="#/s:14FuzzyRelations17CompositionMethodO">CompositionMethod</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Undocumented</p>
<a href="Enums/CompositionMethod.html" class="slightly-smaller">See more</a>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">enum</span> <span class="kt">CompositionMethod</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:10FuzzyLogic17ImplicationMethodO"></a>
<a name="//apple_ref/swift/Enum/ImplicationMethod" class="dashAnchor"></a>
<a class="token" href="#/s:10FuzzyLogic17ImplicationMethodO">ImplicationMethod</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Describes a function used for forming a fuzzy implication.</p>
<p>A function <code>I</code> must satisfy the following axioms in order to be called a fuzzy implication:</p>
<ol>
<li>Boundary condition: <code>S(1, 1) = 1</code>, <code>S(1, 0) = 0</code>, <code>S(0, 0) = 1</code></li>
<li>Non-increasing <code>y</code>: <code>If x_1 &lt;= x_2 Then I(x_1, y) &gt;= I(x_2, y)</code></li>
<li>Non-decreasing <code>x</code>: <code>If y_1 &lt;= y_2 Then I(x, y_1) &lt;= I(x, y_2)</code></li>
</ol>
<a href="Enums/ImplicationMethod.html" class="slightly-smaller">See more</a>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">enum</span> <span class="kt">ImplicationMethod</span></code></pre>
</div>
</div>
</section>
</div>
</li>
</ul>
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