. An example would be something like:
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Hi!
This is a glossary of key philosophical terms which you are expected to know for all of your A-level philosophy units, though they will be of particular use for epistemology and you are welcome to use this as a beginner’s guide to philosophical terminology even if you are not currently studying for an A-level. The content of this guide is based on the new AQA specification, which you can find here. If there are any other terms which you feel should be included here or if you would like me to clarify something, please let me know!
The bits in spoilers are just interesting addenda, not content you need to know for A-level (don’t panic!).
Assertions/claims and propositions
Propositions in ethics:
Spoiler:
In ethics, the debate surrounding moral cognitivism/non-cognitivism concerns whether ethical statements can be considered propositions. Non-cognitivists argue that a statement such as “lying is wrong” or “income equality is just” can neither be true nor false; rather, it is an expression of social norms, personal preferences or something else which is not a feature of the world and hence cannot have a truth value. This has far-reaching consequences for how we think about morality; if moral utterances cannot be true or false, how can we know what is right and what is wrong?
Show
In ethics, the debate surrounding moral cognitivism/non-cognitivism concerns whether ethical statements can be considered propositions. Non-cognitivists argue that a statement such as “lying is wrong” or “income equality is just” can neither be true nor false; rather, it is an expression of social norms, personal preferences or something else which is not a feature of the world and hence cannot have a truth value. This has far-reaching consequences for how we think about morality; if moral utterances cannot be true or false, how can we know what is right and what is wrong?
Conditionals, antecedents and consequents
- In logic and philosophy, a conditional is a sentence of the form “if […], then […]”, for example “if it is cold outside, [then] I shall wear a coat.” Symbolically, this relation can be represented using
, 
or 
, so 
means “if p, then q.” - The antecedent is the “if…” part of the conditional, while the consequent is the “then…” part. In other words, the consequent is the event which is to occur and the antecedent is the condition under which it would occur: I shall wear a coat under the condition that it is cold outside.
- Other statements which are not written as conditionals can be paraphrased as conditionals, for example, “all lemons are sour” is equivalent to “if something is a lemon, then it is sour.”
- A conditional is false if and only if it has both a true antecedent and a false consequent; if the antecedent is false, the conditional is trivially true.
For people who like grammar:
Spoiler:
Rearranging the syntax of our example sentence as “I shall wear a coat if it is cold outside” shows very clearly that the consequent (blue) is a main clause and the antecedent (green) is a dependent clause. The former is called the apodosis and the latter is called the protasis; an apodosis is a main clause whose validity/truth depends on that of a dependent clause/protasis.
Show
Rearranging the syntax of our example sentence as “I shall wear a coat if it is cold outside” shows very clearly that the consequent (blue) is a main clause and the antecedent (green) is a dependent clause. The former is called the apodosis and the latter is called the protasis; an apodosis is a main clause whose validity/truth depends on that of a dependent clause/protasis.
Proofs with conditionals:
Spoiler:
One can prove or disprove a conditional by making assumptions about certain parts of it. The most obvious way is to assume that the antecedent is true and then prove that the consequent is true using that assumption, which shows that the consequent is true if the antecedent is true, but you could also do this “backwards” by assuming that the consequent is false and proving that the antecedent is false. This is called a proof by contrapositive. Another approach is a proof by contradiction, which you might know of from maths; in logic, this involves assuming that the conditional is false (i.e. that the antecedent is true and the consequent is false) and using that assumption to reach a contradiction, thereby showing that the assumption is false and the conditional is true.
Show
One can prove or disprove a conditional by making assumptions about certain parts of it. The most obvious way is to assume that the antecedent is true and then prove that the consequent is true using that assumption, which shows that the consequent is true if the antecedent is true, but you could also do this “backwards” by assuming that the consequent is false and proving that the antecedent is false. This is called a proof by contrapositive. Another approach is a proof by contradiction, which you might know of from maths; in logic, this involves assuming that the conditional is false (i.e. that the antecedent is true and the consequent is false) and using that assumption to reach a contradiction, thereby showing that the assumption is false and the conditional is true.
Analytic vs. synthetic truth
A priori vs. a posteriori
Kant and synthetic a priori knowledge:
Spoiler:
Kant rejected this empiricist idea that a priori knowledge is necessarily analytic and not substantive. He argued that innate knowledge of theoretical concepts (a common example is causation, or the relation between cause and effect) is needed to learn in order to learn about the existence of the concept in reality through experience. Theoretical ideas which are known innately but which can also be experienced and applied in the physical world, such as the idea of causation, are known in the Kantian lexicon as synthetic a priori knowledge. Another example of synthetic a priori knowledge, according to Kant, is mathematical statements; arguably, the truth value of a mathematical proposition is not necessarily immediately evident given the definitions of the components of the statement.
Show
Kant rejected this empiricist idea that a priori knowledge is necessarily analytic and not substantive. He argued that innate knowledge of theoretical concepts (a common example is causation, or the relation between cause and effect) is needed to learn in order to learn about the existence of the concept in reality through experience. Theoretical ideas which are known innately but which can also be experienced and applied in the physical world, such as the idea of causation, are known in the Kantian lexicon as synthetic a priori knowledge. Another example of synthetic a priori knowledge, according to Kant, is mathematical statements; arguably, the truth value of a mathematical proposition is not necessarily immediately evident given the definitions of the components of the statement.
Necessary vs. contingent
Inductive vs. deductive argument
- The general rule to remember is that deductive arguments go from the general to the specific, whereas inductive arguments go from the specific to the general.
- By making a deductive argument, one is trying to argue that if the premises of an argument are true, the conclusion cannot be anything other than true. A deductive argument which accomplishes this is valid; a deductive argument which accomplishes this and has justified, actually true premises is sound. All deductive reasoning is either valid or invalid (there is no "semi-valid"
. An example would be something like:
P1) It is raining all over London.
P2) Enfield is in London.
C) It is raining in Enfield.
- The above format of presenting an argument is called a syllogism (P means premise and C means conclusion).
- In contrast, the strength of an inductive argument is continuous. A strong inductive argument shows that the conclusion is likely, rather than certain, to be true, so an inductive argument can have levels of strength (not validity, since the purpose of the argument is not to show that a conclusion is definitely true). For example, "it is raining in Enfield, therefore it is raining all over London."
- New evidence can affect the strength of an inductive argument; if Enfield generally had different weather to the rest of London, the above argument would be weaker.
More coming soon!
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#2
here's a common mistake my students make when doing their evaluation in Religious Studies evaluation style essays.
This isn't exactly a 'mistake' in the sense that it's false. But it does limit the essays to around a C grade.
After you've explained an idea/theory/philosopher, in most cases you should evaluate it.
The mistake is to simply bring up another idea/theory/philosopher that has a different view to the first one.
That is not evaluation. Evaluation is you saying which is right, and most importantly - why.
For example:
On the topic of Religious Experience, let's say I first explained William James' view. Then I want to evaluate James.
The bad way would simply be to bring up someone with a different view - like Dawkins. I could explain that Dawkins thinks there's no evidence that religious experiences are caused by God, so they are delusions and can be explained by science as mental illness, random brain hallucinations, fasting, drugs, alcohol, etc.
The problem is, I haven't said who I think is right, or why. I've just said:
'here is James's view. Here's dawkins' view. Dawkins thinks James is wrong.'
And that's it. That's not saying who is right let alone why!
Just adding 'Dawkins' argument is stronger as it is based on empirical evidence' would be a huge step in the right direction, though it's not nearly enough.
What is really needed are arguments which establish that one is right and the other is wrong.
For example: I could also get into a debate about whether we could have evidence of God as the cause of religious experience anyway - perhaps dawkins is wrong to look for evidence as there wouldn't be any?. Or that just because some religious experiences are caused by scientifically understandable means, that doesn't mean all are. James also made some arguments such as inviting us to consider that religious experiences occur all over the world, to tribes that have never met other tribes, and there are interesting similarities between them - that fact needs explaining - perhaps by a God or 'higher spiritual reality' as James believed.
James also pointed to the good effects of religious experiences. Religious experiences are not simply random brain hallucinations like seeing a dog in your room at night when really there isn't one or something. Religious experiences are deeply meaningful and have a profound impact on someone's life, often for the better. Why should that be? How is that the case? Again, James thought that religious experiences genuinely tapping into a higher spiritual realm was the best explanation. Though of course there could be other explanations of these things that would back up Dawkins instead.
These would all be fine arguments to make, some of which would end up pointing to that Dawkins being right, others of which would suggest James is right. Use whatever you are arguing for in the essay.
This is getting much closer to then saying who is actually right, which is what we need to do for evaluation.
To really make the evaluation perfect after doing those sorts of arguments though, it's good finally to add something about the clash in the two different perspectives from which the philosophers you are adjudicating view the world.
Dawkins represents the standard scientific view. James is a pragmatist (someone who thinks that if something is good for us, then that is reason to think it is true).
If I could say something about which of those two perspectives is correct then I would really be doing the best kind of evaluation possible.
In short, don't simply bring up different ideas/theories/philosophers one after another - use your brain to think how their views interact with each other and ultimately which one is right and most importantly - why!
This isn't exactly a 'mistake' in the sense that it's false. But it does limit the essays to around a C grade.
After you've explained an idea/theory/philosopher, in most cases you should evaluate it.
The mistake is to simply bring up another idea/theory/philosopher that has a different view to the first one.
That is not evaluation. Evaluation is you saying which is right, and most importantly - why.
For example:
On the topic of Religious Experience, let's say I first explained William James' view. Then I want to evaluate James.
The bad way would simply be to bring up someone with a different view - like Dawkins. I could explain that Dawkins thinks there's no evidence that religious experiences are caused by God, so they are delusions and can be explained by science as mental illness, random brain hallucinations, fasting, drugs, alcohol, etc.
The problem is, I haven't said who I think is right, or why. I've just said:
'here is James's view. Here's dawkins' view. Dawkins thinks James is wrong.'
And that's it. That's not saying who is right let alone why!
Just adding 'Dawkins' argument is stronger as it is based on empirical evidence' would be a huge step in the right direction, though it's not nearly enough.
What is really needed are arguments which establish that one is right and the other is wrong.
For example: I could also get into a debate about whether we could have evidence of God as the cause of religious experience anyway - perhaps dawkins is wrong to look for evidence as there wouldn't be any?. Or that just because some religious experiences are caused by scientifically understandable means, that doesn't mean all are. James also made some arguments such as inviting us to consider that religious experiences occur all over the world, to tribes that have never met other tribes, and there are interesting similarities between them - that fact needs explaining - perhaps by a God or 'higher spiritual reality' as James believed.
James also pointed to the good effects of religious experiences. Religious experiences are not simply random brain hallucinations like seeing a dog in your room at night when really there isn't one or something. Religious experiences are deeply meaningful and have a profound impact on someone's life, often for the better. Why should that be? How is that the case? Again, James thought that religious experiences genuinely tapping into a higher spiritual realm was the best explanation. Though of course there could be other explanations of these things that would back up Dawkins instead.
These would all be fine arguments to make, some of which would end up pointing to that Dawkins being right, others of which would suggest James is right. Use whatever you are arguing for in the essay.
This is getting much closer to then saying who is actually right, which is what we need to do for evaluation.
To really make the evaluation perfect after doing those sorts of arguments though, it's good finally to add something about the clash in the two different perspectives from which the philosophers you are adjudicating view the world.
Dawkins represents the standard scientific view. James is a pragmatist (someone who thinks that if something is good for us, then that is reason to think it is true).
If I could say something about which of those two perspectives is correct then I would really be doing the best kind of evaluation possible.
In short, don't simply bring up different ideas/theories/philosophers one after another - use your brain to think how their views interact with each other and ultimately which one is right and most importantly - why!
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