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<a NAME="E1:67_1_1"/>
<font color="Maroon" title="c2">x0</font>,<font color="Maroon" title="c3">x1</font> <a href="borsuk_6.html#R1" title="BORSUK_6:pred.1">are_connected</a> 
 
<b>by </b><i><a class="ref" href="borsuk_2.html#D3" title="BORSUK_2:def.3">BORSUK_2:def 3</a></i>;<br/>
<b>hence </b><a NAME="E2:67_1_1"/>
(  <a href="topalg_1.html#K5" title="TOPALG_1:func.5">pi_1-iso</a> <font color="Maroon" title="c4">P</font> is <a href="funct_1.html#V2" title="FUNCT_1:attr.2">one-to-one</a> &amp;  <a href="topalg_1.html#K5" title="TOPALG_1:func.5">pi_1-iso</a> <font color="Maroon" title="c4">P</font> is <a href="funct_2.html#V2" title="FUNCT_2:attr.2">onto</a> )
 <b>by </b><i><a class="ref" href="topalg_1.html#T52" target="_self" title="TOPALG_1:th.52">Th52</a>, <a class="ref" href="topalg_1.html#T53" target="_self" title="TOPALG_1:th.53">Th53</a></i>;<br/>


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