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<b>let </b><font color="Maroon">T</font> be  non <a href="struct_0.html#V3">empty</a> <a href="pre_topc.html#NM1">TopSpace</a>;<br/><b>let </b><font color="Maroon">t</font> be   <a href="pre_topc.html#NM2">Point</a> of <font color="Maroon">T</font>;<br/><b>let </b><font color="Maroon">x</font> be   <a href="pre_topc.html#NM2">Point</a> of <a href="borsuk_1.html#K20">I[01]</a> ;<br/><b>let </b><font color="Maroon">P</font> be  <a href="funct_1.html#V3">constant</a> <a href="topalg_1.html#NM1">Loop</a> of <font color="Maroon">t</font>;<br/>







<a NAME="E1:27"/>
<font color="Maroon">P</font> <a href="funct_2.html#R2">=</a> <a href="borsuk_1.html#K20">I[01]</a>  <a href="borsuk_1.html#K3">--&gt;</a> <font color="Maroon">t</font>
 
<b>by </b><i><a class="ref" href="borsuk_2.html#T6">BORSUK_2:6</a></i>;<br/>
<b>hence </b><a NAME="E2:27"/>
<font color="Maroon">P</font> <a href="funct_2.html#K3">.</a> <font color="Maroon">x</font> <a href="hidden.html#R1">=</a> <font color="Maroon">t</font>
 <b>by </b><i/>;<br/>


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