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<div>:: <span class="kw">deftheorem </span><span class="lab"><font color="Green" title="E30">Def17</font></span>   defines <a href="proofs_1.html#K10" title="PROOFS_1:func.10">Omit</a> <a onclick="hs(this)" href="javascript:()">PROOFS_1:def 25 : <br/></a><span> for <font color="Olive" title="b1">P</font> being   non  <a href="struct_0.html#V2" title="STRUCT_0:attr.2">empty</a>   <a href="proofs_1.html#L1" title="PROOFS_1:struct.1">ProofSystem</a> <br/>  for <font color="Olive" title="b2">B</font> being   <a href="struct_0.html#NM2" title="STRUCT_0:NM.2">Subset</a> of <font color="Olive" title="b1">P</font><br/>  for <font color="Olive">b<sub>3</sub></font> being   <a href="struct_0.html#NM3" title="STRUCT_0:NM.3">Subset-Family</a> of <font color="Olive" title="b1">P</font> holds <br/> ( <font color="Olive">b<sub>3</sub></font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="proofs_1.html#K10" title="PROOFS_1:func.10">Omit</a> (<font color="Olive" title="b1">P</font>,<font color="Olive" title="b2">B</font>) iff  for <font color="Olive" title="b4">B1</font> being   <a href="struct_0.html#NM2" title="STRUCT_0:NM.2">Subset</a> of <font color="Olive" title="b1">P</font> holds <br/> ( <font color="Olive" title="b4">B1</font> <a href="tarski.html#R2" title="TARSKI:pred.2">in</a> <font color="Olive">b<sub>3</sub></font> iff <font color="Olive" title="b4">B1</font> is <font color="Olive" title="b2">B</font> <a href="proofs_1.html#V13" title="PROOFS_1:attr.13">-omitting</a>  ) );<br/></span></div>
