_frege_funcf.svg

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<svg width="72" height="64" version="1.1" xmlns="http://www.w3.org/2000/svg">
  <desc>converse f is single-valued</desc>
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  <text class="text" x="8" y="20">&#949;</text>
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  <text class="text" x="20" y="36">&#119891;&#8202;(&#948;, &#949;)</text>
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