document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1145903>Question 1145903</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can you help me construct a proof for these arguments? Thanks in advance.<BR>\n" );
document.write( "1.<BR>\n" );
document.write( "(x)((Fx & Gx) -> Hx)<BR>\n" );
document.write( "(x)Gx<BR>\n" );
document.write( "/.: (x)(Fx -> Hx)\r<BR>\n" );
document.write( "\n" );
document.write( "2.<BR>\n" );
document.write( "(3x)Jx<BR>\n" );
document.write( "(x)(Jx -> Hx)<BR>\n" );
document.write( "(3x)Hx -> (x)Gx<BR>\n" );
document.write( "/.: (3x)Fx -> (3x)Gx<BR>\n" );
document.write( " </SPAN>\n" );
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