</span> ... <span class="keyword">end</span></span></code></div><div class="spec-doc"><p>Domain to keep pruned history, which are pairs of a pruned value and an assumed expression</p></div></div><div class="odoc-spec"><div class="spec module anchored" id="module-PrunePairs"><a href="#module-PrunePairs" class="anchor"></a><code><span><span class="keyword">module</span> <a href="PrunePairs/index.html">PrunePairs</a></span><span> : <span class="keyword">sig</span> ... <span class="keyword">end</span></span></c