Re: [ProofPower] Existential Elimination

2020-04-02 Thread Roger Bishop Jones
David, Something odd about your message which confuses my mail tool and doesn't quote it properly, so this is hand cranked (your text in italics) / //What is confusing is the 3 parameters.  e.g. In this partial proof, there is only one premise, but you mention 2? /I'm afraid I'm confused by

Re: [ProofPower] Existential Elimination

2020-04-02 Thread David Topham
Roger, Thank for once again trying to clarify Existential Elimination. Sorry for being to thick-headed, but I still don't get it. What is confusing is the 3 parameters. e.g. In this partial proof, there is only one premise, but you mention 2? > > Message: 2 > Date: Tue, 31 Mar 2020 21:35:59 +010