@kennethamy,
Dear Kennethamy
Many thanks. You are right. I went onto another website called "ask a philospher" yesterday and received an excellent reply - as follows:
" Question: Is this statement a tautology: \"If there were no opportunities there would be no crimes\" ?
ANSWER
It depends on how strictly you want to define the word "tautology".
A) FORMAL: If you wanted to evaluate it this statement as a formal tautology you would have to rewrite it as a formal statement first. In the form
"IF NOT a THEN NOT b"
(a=opportunities, b=crimes)
it is not a tautology, but in the form
"IF NOT a THEN NOT (a AND b)"
(a=opportunities, b=actions, opportunities + actions=crimes)
it is a tautology, because no possible assignment of a and b makes the statement as a whole false.
B) RHETORICAL
Although, taken literally, it seems to verge on a tautology in a rhetorical sense, you could reasonably argue that it functions rhetorically as a stand-in for the substantive claim "preventing opportunities is the best way to prevent crimes". "
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I found this very helpful. And my reply to the philospher this morning (having thanked him for being so kind as to offer his free advice to me) was as follows:
"....I am extremely grateful for this - it puts what was little more than my own ill-defined gut instinct into something I can now describe with greater confidence and refinement.
In relation to your last sentence regarding the stand-in for a substantive claim: "preventing opportunities is the best way to prevent crimes". My next problem is with the very concept "opportunities" used in this way. The way I see it, if a building is vulnerable to burglary through having weak windows, no alarm, is hidden from the view of passers by and a vulnerable door lock fixing - then fixing these things does not strictly prevent "opportunities". Rather, it reduces the pool of potential thieves who will break into it - since now only determined, skilled and greater risk takers will pose a threat to the buildings contents. Opportunities have not been reduced (strictly speaking). What has been reduced is vulnerability. Because as soon as anyone overcomes any of the reinforced/improved characteristics of the building they took an advantage of the opportunity to overcome it (here is the tautology).
Am I being needlessly pedantic do you think? Any further advice greatly appreciated.However, I do not wish to burden you too much with these criminological concerns of mine as I verymuch appreciate the help already given."
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As you can see my problem appears to be that I had to struggle with the issue of the tautology and then (as you point out) with the concept of what opprotunity means.
I think my mind is finally getting a grip on the issue.
Any further insights greatly appreciated. I will most certainly be making an acknowledgement to the very helpful and thoughtful generous souls on these websites in my paper.
Mike