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Math Forum http://mathforum.org/kb List of forum topics en Re: A formal counter-example of Ax Ey P(x,y) -> Ey Ax P(x,y) http://mathforum.org/kb/thread.jspa?messageID=7935536&tstart=0#7935536 wrote:
> On Dec 10, 11:54 pm, Graham Cooper]]> Dec 11, 2012 3:49:33 PM Dec 11, 2012 3:49:33 PM grahamcooper7@gmail.com 0 Re: A formal counter-example of Ax Ey P(x,y) -> Ey Ax P(x,y) http://mathforum.org/kb/thread.jspa?messageID=7935361&tstart=0#7935361 > On Dec 10, 2:31 pm, fom]]> Dec 11, 2012 9:24:43 AM Dec 11, 2012 9:24:43 AM Dan_Christensen@sympatico.ca 1 Re: A formal counter-example of Ax Ey P(x,y) -> Ey Ax P(x,y) http://mathforum.org/kb/thread.jspa?messageID=7935230&tstart=0#7935230 > On Dec 10, 2:31 pm, fom <fomJ...@nyms.net> wrote:
Dec 11, 2012 12:44:02 AM Dec 11, 2012 12:44:02 AM fomJUNK@nyms.net 0 Re: A formal counter-example of Ax Ey P(x,y) -> Ey Ax P(x,y) http://mathforum.org/kb/thread.jspa?messageID=7935187&tstart=0#7935187 > On 12/8/2012 11:13 PM, Dan Christensen]]> Dec 10, 2012 11:54:48 PM Dec 10, 2012 11:54:48 PM grahamcooper7@gmail.com 3 Re: A formal counter-example of Ax Ey P(x,y) -> Ey Ax P(x,y) http://mathforum.org/kb/thread.jspa?messageID=7935188&tstart=0#7935188 ]]> Dec 10, 2012 11:54:47 PM Dec 10, 2012 11:54:47 PM 4 A formal counter-example of Ax Ey P(x,y) -> Ey Ax P(x,y) http://mathforum.org/kb/thread.jspa?messageID=7935189&tstart=0#7935189 ]]> Dec 10, 2012 11:54:47 PM Dec 10, 2012 11:54:47 PM 5