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<span class="p1"><a href="borsuk_5.html#NK4" target="_self">].</a><span class="default">1</span><a href="borsuk_5.html#NK4" target="_self">,+infty.[</a></span> <a href="subset_1.html#K9">/\</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4"><a href="borsuk_5.html#NK1" target="_self">].-infty,</a><span class="default">2</span><a href="borsuk_5.html#NK1" target="_self">.]</a></span> <a href="subset_1.html#K4">\/</a> <span class="p4">(<span class="default"><a href="borsuk_5.html#K3" target="_self">IRRAT</a> 2,4</span>)</span></span>)</span> <a href="subset_1.html#K4">\/</a> <span class="p3"><a href="seq_4.html#K1">{</a><span class="default">4</span><a href="seq_4.html#K1">}</a></span></span>)</span> <a href="subset_1.html#K4">\/</a> <span class="p2"><a href="seq_4.html#K1">{</a><span class="default">5</span><a href="seq_4.html#K1">}</a></span></span>)</span> = 
<span class="p1"><a href="borsuk_5.html#NK4" target="_self">].</a><span class="default">1</span><a href="borsuk_5.html#NK4" target="_self">,+infty.[</a></span> <a href="subset_1.html#K9">/\</a> <span class="p1">(<span class="default"><span class="p2"><a href="borsuk_5.html#NK1" target="_self">].-infty,</a><span class="default">2</span><a href="borsuk_5.html#NK1" target="_self">.]</a></span> <a href="subset_1.html#K4">\/</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><a href="borsuk_5.html#K3" target="_self">IRRAT</a> 2,4</span>)</span> <a href="subset_1.html#K4">\/</a> <span class="p4"><a href="seq_4.html#K1">{</a><span class="default">4</span><a href="seq_4.html#K1">}</a></span></span>)</span> <a href="subset_1.html#K4">\/</a> <span class="p3"><a href="seq_4.html#K1">{</a><span class="default">5</span><a href="seq_4.html#K1">}</a></span></span>)</span></span>)</span>
<b>by </b><i><a class="ref" href="xboole_1.html#T113">XBOOLE_1:113</a></i>
<br/>.= 
<span class="p1">(<span class="default"><span class="p2"><a href="borsuk_5.html#NK4" target="_self">].</a><span class="default">1</span><a href="borsuk_5.html#NK4" target="_self">,+infty.[</a></span> <a href="subset_1.html#K9">/\</a> <span class="p2"><a href="borsuk_5.html#NK1" target="_self">].-infty,</a><span class="default">2</span><a href="borsuk_5.html#NK1" target="_self">.]</a></span></span>)</span> <a href="subset_1.html#K4">\/</a> <span class="p1">(<span class="default"><span class="p2"><a href="borsuk_5.html#NK4" target="_self">].</a><span class="default">1</span><a href="borsuk_5.html#NK4" target="_self">,+infty.[</a></span> <a href="subset_1.html#K9">/\</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4">(<span class="default"><a href="borsuk_5.html#K3" target="_self">IRRAT</a> 2,4</span>)</span> <a href="subset_1.html#K4">\/</a> <span class="p4"><a href="seq_4.html#K1">{</a><span class="default">4</span><a href="seq_4.html#K1">}</a></span></span>)</span> <a href="subset_1.html#K4">\/</a> <span class="p3"><a href="seq_4.html#K1">{</a><span class="default">5</span><a href="seq_4.html#K1">}</a></span></span>)</span></span>)</span>
<b>by </b><i><a class="ref" href="xboole_1.html#T23">XBOOLE_1:23</a></i>
<br/>.= 
<span class="p1">(<span class="default"><span class="p2"><a href="borsuk_5.html#NK4" target="_self">].</a><span class="default">1</span><a href="borsuk_5.html#NK4" target="_self">,+infty.[</a></span> <a href="subset_1.html#K9">/\</a> <span class="p2"><a href="borsuk_5.html#NK1" target="_self">].-infty,</a><span class="default">2</span><a href="borsuk_5.html#NK1" target="_self">.]</a></span></span>)</span> <a href="subset_1.html#K4">\/</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="borsuk_5.html#K3" target="_self">IRRAT</a> 2,4</span>)</span> <a href="subset_1.html#K4">\/</a> <span class="p3"><a href="seq_4.html#K1">{</a><span class="default">4</span><a href="seq_4.html#K1">}</a></span></span>)</span> <a href="subset_1.html#K4">\/</a> <span class="p2"><a href="seq_4.html#K1">{</a><span class="default">5</span><a href="seq_4.html#K1">}</a></span></span>)</span>
<b>by </b><i><a class="txt" href="borsuk_5.html#E112"><i><font color="Green">Lemma77</font></i></a>, <a class="ref" href="xboole_1.html#T28">XBOOLE_1:28</a></i>
<br/>.= 
<span class="p1"><a href="rcomp_2.html#K2">].</a><span class="default">1,2</span><a href="rcomp_2.html#K2">.]</a></span> <a href="subset_1.html#K4">\/</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><span class="p3">(<span class="default"><a href="borsuk_5.html#K3" target="_self">IRRAT</a> 2,4</span>)</span> <a href="subset_1.html#K4">\/</a> <span class="p3"><a href="seq_4.html#K1">{</a><span class="default">4</span><a href="seq_4.html#K1">}</a></span></span>)</span> <a href="subset_1.html#K4">\/</a> <span class="p2"><a href="seq_4.html#K1">{</a><span class="default">5</span><a href="seq_4.html#K1">}</a></span></span>)</span>
<b>by </b><i><a class="ref" href="borsuk_5.html#T91" target="_self">Th91</a></i>
<br/>.= 
<span class="p1">(<span class="default"><span class="p2">(<span class="default"><span class="p3"><a href="rcomp_2.html#K2">].</a><span class="default">1,2</span><a href="rcomp_2.html#K2">.]</a></span> <a href="subset_1.html#K4">\/</a> <span class="p3">(<span class="default"><a href="borsuk_5.html#K3" target="_self">IRRAT</a> 2,4</span>)</span></span>)</span> <a href="subset_1.html#K4">\/</a> <span class="p2"><a href="seq_4.html#K1">{</a><span class="default">4</span><a href="seq_4.html#K1">}</a></span></span>)</span> <a href="subset_1.html#K4">\/</a> <span class="p1"><a href="seq_4.html#K1">{</a><span class="default">5</span><a href="seq_4.html#K1">}</a></span>
<b>by </b><i><a class="ref" href="xboole_1.html#T113">XBOOLE_1:113</a></i>
;<br/>
<b>hence </b><a NAME="E2:99"/>
<span class="p1"><a href="borsuk_5.html#NK4" target="_self">].</a><span class="default">1</span><a href="borsuk_5.html#NK4" target="_self">,+infty.[</a></span> <a href="subset_1.html#K9">/\</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><span class="p3">(<span class="default"><span class="p4"><a href="borsuk_5.html#NK1" target="_self">].-infty,</a><span class="default">2</span><a href="borsuk_5.html#NK1" target="_self">.]</a></span> <a href="subset_1.html#K4">\/</a> <span class="p4">(<span class="default"><a href="borsuk_5.html#K3" target="_self">IRRAT</a> 2,4</span>)</span></span>)</span> <a href="subset_1.html#K4">\/</a> <span class="p3"><a href="seq_4.html#K1">{</a><span class="default">4</span><a href="seq_4.html#K1">}</a></span></span>)</span> <a href="subset_1.html#K4">\/</a> <span class="p2"><a href="seq_4.html#K1">{</a><span class="default">5</span><a href="seq_4.html#K1">}</a></span></span>)</span> <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><span class="p3"><a href="rcomp_2.html#K2">].</a><span class="default">1,2</span><a href="rcomp_2.html#K2">.]</a></span> <a href="subset_1.html#K4">\/</a> <span class="p3">(<span class="default"><a href="borsuk_5.html#K3" target="_self">IRRAT</a> 2,4</span>)</span></span>)</span> <a href="subset_1.html#K4">\/</a> <span class="p2"><a href="seq_4.html#K1">{</a><span class="default">4</span><a href="seq_4.html#K1">}</a></span></span>)</span> <a href="subset_1.html#K4">\/</a> <span class="p1"><a href="seq_4.html#K1">{</a><span class="default">5</span><a href="seq_4.html#K1">}</a></span>
 ;<br/>


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