Later writers satirised this view in terms of an ass which, confronted by both food and water, must necessarily die of both hunger and thirst while pondering a decision. — Buridan's Ass | Wikipedia
I take 'the contradictory statement is P' to mean that P is a contradiction, as a contradictory statement is a contradiction. — TonesInDeepFreeze
But maybe you mean it is a contradicting statement. — TonesInDeepFreeze
You changed the sentence. Here is what you wrote: — TonesInDeepFreeze
"If lizards were purple then they would be smarter" is not a contradiction — TonesInDeepFreeze
I know of no context in which that sentence is a contradiction. — TonesInDeepFreeze
There are two separate matters: negation and material implication. — TonesInDeepFreeze
Given the way that common speech differs from material implication, in common speech the two speakers would generally be contradicting one another. — Leontiskos
no - the consequent can only be affirmed as true IF the antecedent is first affirmed as true. It's THAT that is not the case here. — flannel jesus
if you phrase "A -> B" as "from A follows B", then if A is false, you can say "A -> anything", from A anything follows — flannel jesus
From falsehood, anything follows. Have you ever heard of this? — flannel jesus
Another example is that someone might have a sudden and uncontrollable sneezing fit when driving and fail to see the pedestrian on the crossing and run them over and kill them. They will still be punished even though it was not their fault in any moral sense. — Janus
You are conflating the legal with the moral. If someone drinks and drives they are being negligent. If their ability to focus on the task of driving safely and/ or being physically coordinated enough to do it, is sufficiently impaired by the alcohol and they are unlucky enough to kill someone, they will not be excused and will be prosecuted and punished to a far greater extent than if they had not killed someone. — Janus
From the point of view of the law concerning negligence, they have committed a greater crime than if they had merely driven without incident, but this doesn't seem right from a moral standpoint. Call this moral luck (or unluck). — Janus
Again, a contradiction is a statement and its negation. If there is a contradiction then you could show that both a statement and its negation are implied.
Again:
"if lizards are purple, then they would be smarter" and "if lizards are purple, then they would not be smarter" is not a contradiction. — TonesInDeepFreeze
Which is, compared to your citations, a poor translation (apparently). Irregardless, if I take it that his second sentence is a definition (and not an assertion that about what nobility think), then: — Bob Ross
'The good' refers to what is supremely and ultimately good — Bob Ross
If I assume he means to define "good", as opposed to "the good", as "that which all things aim at", then this seems like an incredibly inadequate definition... — Bob Ross
Now as "being" is the first thing that falls under the apprehension simply, so "good" is the first thing that falls under the apprehension of the practical reason, which is directed to action: since every agent acts for an end under the aspect of good. Consequently the first principle of practical reason is one founded on the notion of good, viz. that "good is that which all things seek after." — Aquinas, ST I-II.94.2
People want a contractor who will build them a house; they don't want a contractor who will not build them a house. — Michael
The law simply says "if someone does not fulfil the terms of their contract then they are to be jailed". The judge then rules that I did not fulfil the terms of my contract and so orders the bailiffs to take me to jail.
Again, the existence of some supposed obligation is utterly irrelevant. — Michael
↪Michael So this tells me only that you will not be held to your promises.
OK. You are not a man of your word. — Banno
A vow denotes a binding to do or omit some particular thing. Now one man binds himself to another by means of a promise, which is an act of the reason to which faculty it belongs to direct. For just as a man by commanding or praying, directs, in a fashion, what others are to do for him, so by promising he directs what he himself is to do for another. Now a promise between man and man can only be expressed in words or any other outward signs; [...] Now a promise is the outcome from a purpose of doing something: and a purpose presupposes deliberation, since it is the act of a deliberate will. Accordingly three things are essential to a vow: the first is deliberation. the second is a purpose of the will; and the third is a promise, wherein is completed the nature of a vow. — Aquinas, ST II-II.88.1 Whether a vow consists in a mere purpose of the will?
The terms of the contract simply say "Michael is to build the house or pay a fine". The law simply says "if someone does not fulfil the terms of their contract then they are to be jailed".
Neither the law nor the contract depend on the existence of obligations, and so arguing that obligations don't existence is an irrelevant argument. — Michael
I can say whatever I want. I doubt it would convince a judge. The contract states that if I do not build the house then I am to pay a fine. The law states that if I do not pay the fine then I am to be jailed. So I build the house, pay a fine, or go to jail. Unless I have very good lawyers, I have to choose between one of these outcomes. — Michael
I can do all of that. And then I will presumably face some further punishment. — Michael
I don't understand the relevance of the question. — Michael
For not doing what I was contracted to do. — Michael
As in, "If I don't build the house on time then some authority will fine me."
This is true if in the terms of the contract. But this proposition does not entail "I ought build the house" (or "I ought pay the fine"). — Michael
I was thinking of it in terms of the conditional "If X doesn't happen then Y will happen", and that this proposition does not entail "I ought X". — Michael
Right, by "owe" you mean "obligated to give you the money"? Again, you haven't told me what it means to be obligated to do something. I just either do it or I don't. — Michael
Well I can certainly change my mind and not give you the money, and then face whatever punishment follows. — Michael
Yes. — Michael
He didn't do what he was contracted to do and so as per the terms of the contract (or the law in general) he is penalized.
That's all there is to it. I don't understand what this additional thing – the "obligation" – is, or what part it plays. — Michael
That depends on what you mean. Here are two propositions:
1. Promises exist
2. People promise to do things — Michael
The colloquially normative sense is just to treat a command as a truth-apt proposition. — Michael
Michael is presumably saying that obligations don't exist, because you can't place yourself under an obligation, because there is nothing about the past that can oblige one to act in any particular way in the present. He wants to rewrite all future claims about one's own behavior in terms of strict conditional logic, and because conditional logic cannot represent the inner dynamics of things like promising and obligation, for Michael they must not exist at all.
So for Michael promises don't exist, and what he calls a "promise" is a promise shorn of all obligation. — Leontiskos
Anscombe talks of obligation as if it functions only under a law, citing medieval etymology. From what I understand the word derives from obligationem, "a binding". It's the "counts as" that is peculiar, binding and worthy of consideration. — Banno
In short, the law must have the ratio of due, and it is due in the same sense in which we say that something is due to someone else, i.e., some sort of debt. This is simply to say that, for Aquinas, debitum encompasses both the notions of ‘moral duty’ and ‘debt to another.’ Consequently, law, by its nature, regards our duties to others and their corresponding rights.
It may appear that Aquinas is incorporating an accident of Latin into his account of obligation: Debitum can mean either something owed (i.e., a debt) or something that must be done (a duty). It is worth remembering that debitum—though most frequently used to mean due or debt—is just the passive participle of debeo, which can be used with moral signification to mean ‘must.’ Aquinas in his treatment of law and justice is taking debitum and cognate terms with both senses at once. He is essentially treating these two meanings of debitum not as two discrete meanings—which would render these passages equivocal—but as two interrelated, and mutually implicative concepts.
This identity of debitum ad alium with moral obligation or moral duty, as perceived by reason, is the principal contention of the paper, so let us pause a moment to consider the plausibility of this point. — Diem, Obligation, Justice, and Law: A Thomistic Reply to Anscombe
They are not unrelated. One performs an algorithm by following set rules - principles. — Banno
You equate rational thought with following a principle. — Banno
it is often the case that we must act despite not knowing which principles to apply — Banno
Practical reason is the general human capacity for resolving, through reflection, the question of what one is to do. Deliberation of this kind is practical in at least two senses. First, it is practical in its subject matter, insofar as it is concerned with action. But it is also practical in its consequences or its issue, insofar as reflection about action itself directly moves people to act. — Practical Reason | SEP
That is the law of non-contradiction. What I said is a more formal way of saying the same. — TonesInDeepFreeze
Are you serious? You don't know how to prove it yourself? — TonesInDeepFreeze
“opposite assertions cannot be true at the same time” (Metaph IV 6 1011b13–20) — Aristotle on Non-contradiction | SEP
and "imply ¬A" as the proposition being True means A is False — Lionino