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RE: Evidence for atheism
September 25, 2014 at 9:05 pm
(September 25, 2014 at 9:00 pm)Rhythm Wrote: Is the premise sound? Is the argument valid?
Not in your 5 foot tall ant example, assuming the conditional is not a non sequitur (which it is, but we're ignoring that). Its not valid because you're denying the antecedent which makes it an invalid approximation of a modus poenens.
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RE: Evidence for atheism
September 25, 2014 at 9:13 pm
(This post was last modified: September 25, 2014 at 9:18 pm by The Grand Nudger.)
I'm not denying the antecedent.....I'm not formulating a logical statement or a proof against something -ala "ants aren't 5 feet tall therefore no god", I'm simply explaining that the statement made is false - including the conclusion as part of that statement. Part of it is not true, because part of it is not true, those laws which would lead to our conclusion cannot be counted upon. The statement is not true - as a whole, and this includes the conclusion....upon those grounds.
Your example, btw, was what I was opining upon in my question, not mine. It has problems due to necessary and sufficient conditions (which you don't run into often in casual philosophy - but which you cannot avoid in chipset design - it's an issue I'm very sensitive to ![Wink Wink](https://atheistforums.org/images/smilies/wink.gif) )
I am the Infantry. I am my country’s strength in war, her deterrent in peace. I am the heart of the fight… wherever, whenever. I carry America’s faith and honor against her enemies. I am the Queen of Battle. I am what my country expects me to be, the best trained Soldier in the world. In the race for victory, I am swift, determined, and courageous, armed with a fierce will to win. Never will I fail my country’s trust. Always I fight on…through the foe, to the objective, to triumph overall. If necessary, I will fight to my death. By my steadfast courage, I have won more than 200 years of freedom. I yield not to weakness, to hunger, to cowardice, to fatigue, to superior odds, For I am mentally tough, physically strong, and morally straight. I forsake not, my country, my mission, my comrades, my sacred duty. I am relentless. I am always there, now and forever. I AM THE INFANTRY! FOLLOW ME!
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RE: Evidence for atheism
September 25, 2014 at 9:23 pm
"A ⇒ B is true only in the case that either A is false or B is true, or both."
Material implication, in classical logic, is simply a binary operator, like AND or OR. It implies nothing about the relationship between A and B beyond their truth values.
I think you're trying to read more into it than is there.
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RE: Evidence for atheism
September 25, 2014 at 9:24 pm
(September 25, 2014 at 9:13 pm)Rhythm Wrote: I'm not denying the antecedent.....I'm not formulating a logical statement or a proof against something -ala "ants aren't 5 feet tall therefore no god", I'm simply explaining that the statement made is false - including the conclusion as part of that statement. Part of it is not true, because part of it is not true, those laws which would lead to our conclusion cannot be counted upon. The statement is not true - as a whole, and this includes the conclusion....upon those grounds.
Your example, btw, was what I was opining upon in my question, not mine. It has problems due to necessary and sufficient conditions (which you don't run into often in casual philosophy - but which you cannot avoid in chipset design - it's an issue I'm very sensitive to )
My example is equally fallacious as yours, once you insert not-p therefore not-q. That was the point in posting it. It clearly demonstrates the fallacy. Your original form was valid, but not once you assert not-p.
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RE: Evidence for atheism
September 25, 2014 at 9:25 pm
(This post was last modified: September 25, 2014 at 9:29 pm by The Grand Nudger.)
And in the case that a does not imply b (or that a would imply b..if it were true...and simply isn't), the conclusion is what?
(I don't actually have to insert anything to your example CD, it's invalid, the premise does not have the power to make any assertion that follows lead to the conclusion, necessary and sufficient conditions - the conclusion is false -because- the premise is false.)
I am the Infantry. I am my country’s strength in war, her deterrent in peace. I am the heart of the fight… wherever, whenever. I carry America’s faith and honor against her enemies. I am the Queen of Battle. I am what my country expects me to be, the best trained Soldier in the world. In the race for victory, I am swift, determined, and courageous, armed with a fierce will to win. Never will I fail my country’s trust. Always I fight on…through the foe, to the objective, to triumph overall. If necessary, I will fight to my death. By my steadfast courage, I have won more than 200 years of freedom. I yield not to weakness, to hunger, to cowardice, to fatigue, to superior odds, For I am mentally tough, physically strong, and morally straight. I forsake not, my country, my mission, my comrades, my sacred duty. I am relentless. I am always there, now and forever. I AM THE INFANTRY! FOLLOW ME!
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RE: Evidence for atheism
September 25, 2014 at 9:26 pm
(September 25, 2014 at 9:25 pm)Rhythm Wrote: And in the case that a does not imply b (or that a would imply b..if it were true...and simply isn't), the conclusion is what?
That the conditional is a non-sequitur.
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RE: Evidence for atheism
September 25, 2014 at 9:35 pm
(This post was last modified: September 25, 2014 at 9:36 pm by Jackalope.)
(September 25, 2014 at 9:25 pm)Rhythm Wrote: And in the case that a does not imply b (or that a would imply b..if it were true...and simply isn't), the conclusion is what?
(I don't actually have to insert anything to your example CD, it's invalid, the premise does not have the power to make any assertion that follows lead to the conclusion, necessary and sufficient conditions - the conclusion is false -because- the premise is false.)
I was referring to your example, which in it's original form, is a valid modus poenens. But you cannot assert anything about the truth of the statement as a whole once you assert not-p. It's fallacious, end of. It has -no truth value whatsoever-. It is merely an invalid, unsound argument at that point.
Fucking post editing ninja, that's what you are.
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RE: Evidence for atheism
September 25, 2014 at 9:37 pm
Right, so ...if I claimed p to q and you accurately stated that whatever I invoked with those variables was a non-sequitur...my statement is true or false?
I am the Infantry. I am my country’s strength in war, her deterrent in peace. I am the heart of the fight… wherever, whenever. I carry America’s faith and honor against her enemies. I am the Queen of Battle. I am what my country expects me to be, the best trained Soldier in the world. In the race for victory, I am swift, determined, and courageous, armed with a fierce will to win. Never will I fail my country’s trust. Always I fight on…through the foe, to the objective, to triumph overall. If necessary, I will fight to my death. By my steadfast courage, I have won more than 200 years of freedom. I yield not to weakness, to hunger, to cowardice, to fatigue, to superior odds, For I am mentally tough, physically strong, and morally straight. I forsake not, my country, my mission, my comrades, my sacred duty. I am relentless. I am always there, now and forever. I AM THE INFANTRY! FOLLOW ME!
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RE: Evidence for atheism
September 25, 2014 at 9:44 pm
(September 25, 2014 at 9:37 pm)Rhythm Wrote: Right, so ...if I claimed p to q and you accurately stated that whatever I invoked with those variables was a non-sequitur...my statement is true or false?
That statement "if p then q" would be false. But again, that is not how logic describes arguments as a whole, which I understand to be the point of contention.
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RE: Evidence for atheism
September 25, 2014 at 9:49 pm
No, not the point of contention at all. The point of contention (and perhaps not between you and I) is that when someone says p- q...and you point out that it is (insert whatever fuckup they've made) - that claim..the god of that claim (and that's all that the god in question is, the contents of that claim)...it's false. Perhaps some other god, of some other claim. Right?
I am the Infantry. I am my country’s strength in war, her deterrent in peace. I am the heart of the fight… wherever, whenever. I carry America’s faith and honor against her enemies. I am the Queen of Battle. I am what my country expects me to be, the best trained Soldier in the world. In the race for victory, I am swift, determined, and courageous, armed with a fierce will to win. Never will I fail my country’s trust. Always I fight on…through the foe, to the objective, to triumph overall. If necessary, I will fight to my death. By my steadfast courage, I have won more than 200 years of freedom. I yield not to weakness, to hunger, to cowardice, to fatigue, to superior odds, For I am mentally tough, physically strong, and morally straight. I forsake not, my country, my mission, my comrades, my sacred duty. I am relentless. I am always there, now and forever. I AM THE INFANTRY! FOLLOW ME!
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