All Questions
34 questions
4
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4
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164
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An intensional system of meaning for predicates? (And related thoughts)
In general, I am interested in a paradigm something like this:
When we have premises, there are rules that can allow us to derive consequences of those premises.
Sometimes, going in the reverse ...
- 3,924
0
votes
0
answers
51
views
Is deduction an integral part of induction (logic)?
Definitions:
Deduction: The conclusion necessarily follows with 100% certainty from the premises. Impossible for the conclusion to be false and the premises true (valid)
Induction: The conclusion ...
- 5,460
3
votes
0
answers
67
views
Abduction, deduction and induction in medical diagnosis and intervention
(Apologies if my views on logical inference are overly simplistic -- I'm a radiologist by profession, very far from a philosophy major. My goal is to understand what medical decisions are and where ...
1
vote
2
answers
73
views
Is backtesting inductive reasoning?
We do backtesting in finance; that is, we guess hypotheses/premises, and then use previous data to verify it.
Wikipedia
Investopedia
Is backtesting inductive or deductive reasoning? (Here we have ...
- 1,982
1
vote
3
answers
312
views
Types of reasoning in mathematics
Can we say that analytical approaches is deductive reasoning and numerical approaches(numerical analysis) is inductive reasoning ?
- 1,982
0
votes
1
answer
106
views
Falsification of a statement
Is falsification only applicable to deductive reasoning (as opposed to inductive, abductive and speculative deductive reasoning)?
- 1,982
0
votes
3
answers
255
views
Causation with Inductive/Deductive Logic
I'm sofa-philosopher and I have a case I can't quite dismantle. My friend (let's call him John) just made a statement that I find philosophically weak, and I'd like to run it thru you guys.
So, John ...
- 113
1
vote
2
answers
523
views
Is mathematical induction deduction, and if so, why is it so named?
By induction, I mean this screenshot from this Youtube video
Abduction as an Aspect of Retroduction | Chiasson, Phyllis | Commens
Induction:
The prefix “in,” also from the Latin has to do with ...
user8572
2
votes
1
answer
311
views
Does 1. extra-, 2. intra-polation fall under abduction, induction or deduction?
How does extrapolation relate to abduction, deduction, and/or induction? Scilicet, does abduction, deduction, and/or induction fully encompass Extrapolation?
Same question for Interpolation.
I ...
user8572
0
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0
answers
57
views
What can be known and what can be believed when neither induction nor deduction is justified?
Kant is well known for taking seriously the lack of justification for induction voiced by Hume and finding what is left for us to be able to know and believe.
I wonder, with the knowledge that the ...
-1
votes
1
answer
105
views
Is there such a thing as inductive reasoning?
When I form hypotheses, don't I actually only use deduction instead of induction? Suppose I observe that the sun rises 5 days in a row, so I hypothesise that the sun rises every day.
But for this I am ...
- 169
0
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2
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352
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Are the premises of deductive arg's. founded upon inductive cases?...help is what I am in need of
Let's take this example of a deductive argument:
P1: Monkeys like bananas.
P2: Lucy is a monkey.
C: Therefore, Lucy likes bananas.
Disregarding whether this argument is true or false, how does one ...
2
votes
3
answers
275
views
Does all deductive knowledge stem from inductive observation?
Given the premise that deductive reasoning needs a premise statement to get started, ultimately do these premises come from inductive observation? e.g.
When the sun is out it’s daytime. The sun is out....
- 121
0
votes
0
answers
105
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Is it standard to distinguish two versions of the hypothetico-deductivist conception of science : confirmation approach and falsificationism?
In his course on Philosophy Of Science, Pr Folse ( Loyola University New Orleans) distinguishes two trends in the " empricist consensus " ( that emerged in the 19th century) : inductivism ...
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2
votes
1
answer
183
views
Are inferences in everyday life often combinations of inductive, deductive and other possible methods of inference?
Logicians have distilled methods of inference into some fundamental kinds like deduction and induction. In everyday conversation, though, we are constantly making inferences both inductively and ...
5
votes
2
answers
618
views
Are all non-deductive arguments inductive?
I am having troubles with understanding this question. Can someone give me an example/insight about where to go from here?
- 51
0
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0
answers
145
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Clarifications on 1) Modus Ponens, 2) Modus Tollens, 3) Inductive, 4) Incomplete based on examples
My second lecture on Hypothetico-Deductive methods (based on Popper's falsification theory).
In the class, we were given the following examples. We had to classify which examples belong to 1) Modus ...
- 123
0
votes
1
answer
376
views
Reasoning for Inductive inference?
Just out of curiosity, if I should replace the deductive inference related questions to inductive inference, then which are true?
Inductive inferences rearrange current knowledge in such a way that ...
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1
vote
2
answers
592
views
Confusion between deductive and inductive reasoning definitions
The following arguments is always given as a classic example to deductive reasoning:
All men are mortal. (First premise)
Socrates is a man. (Second premise)
Therefore, Socrates is mortal. ...
- 127
1
vote
2
answers
232
views
Is deduction based on induction?
I'm wondering if deduction is in the end based on induction.
The problem of induction discovered by the Scottish philosopher David Hume is quite well known. On the other hand, it's commonly supported ...
- 1,378
4
votes
3
answers
424
views
Can all inductive arguments be written as deductive arguments?
Whenever I see inductive arguments being used, it seems as though they can be redone by simply making certain assumptions and rephrasing the argument as a deduction from those assumptions.
For ...
- 423
1
vote
5
answers
900
views
How do I operate with philosophers if I reject deductive reasoning?
Deductive reasoning is the one that takes premises for granted. I never do it. Therefore I never do deductive reasoning.
Well, enough jokes. It is safe to assume that deductive reasoning never should ...
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3
votes
3
answers
1k
views
Inductive and deductive arguments and mathematical induction
I started reading Paul Teller's A Modern Formal Logic Primer. In the first chapter, the book presents the inductive and deductive arguments with the following examples:
The inductive argument:
Adam ...
- 131
11
votes
2
answers
2k
views
Is there a deduction analog to the problem of induction?
Aren't deductive and inductive reasoning equally unjustified? So, inductive reasoning is going from specifics to general, whilst deductive reasoning is going from general to specific. But in deductive ...
- 451
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1
answer
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Why can't uniformity of nature (in principle) be proven deductively?
I've been reading about the problem of induction and I have trouble understanding the argument for nature's uniformity being impossible to prove deductively.
Stanford Encyclopedia of Philosophy on ...
- 153
11
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3
answers
3k
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Are "if smoke then fire" arguments deductive or inductive?
I'm new to philosophy and have a question regarding deductive vs. inductive reasoning:
I'm told that "John ate a strange plant in the forest and got sick. Clearly, the plant made John sick."
I ...
- 165
1
vote
2
answers
827
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Based on evolution, do we arrive at deductive principles inductively?
If our knowledge of deductive principles is a result of evolution... doesn't this mean that we arrive at deductive principles inductively?
Assuming deductive principles are beneficial for survival, ...
- 3,173
2
votes
1
answer
650
views
Is this an inductive or a deductive argument?
Two flowers of the same cultivar were planted in adjacent plots .
The first was fertilized with Miracle-Gro and it flourished (2); The second was not and it din't(3) .
Therefore , Miracle-Gro ...
- 267
0
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3
answers
248
views
Is this inductive or deductive?
The fact that we know we have a great great grandfather. Is the reasoning we use for this inductive or deductive?
user26403
0
votes
1
answer
178
views
Is logic based on uncertainty the fundamental logic?
Most formal logics are based on certainty, but certainty is only one probability among others, so a logic based on uncertainty and probability should be considered as the fundamental logic from which ...
- 3
3
votes
7
answers
16k
views
What is the difference between deductive and inductive reasoning?
I have been scouring over the internet in pursuit of a valid elaboration as to the difference between deductive and inductive reasoning, especially when explained using examples. The content that has ...
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2
votes
4
answers
6k
views
Propositions that are always true, but aren't tautologies?
Consider the following statements:
"Snow melts during the day in the Sahara"
"A human will die without oxygen"
"Photons have no rest mass"
These are statements that are always true, not because ...
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3
votes
1
answer
331
views
Isnt induction just deduction with an implicit premise?
I have a problem with the distinction between induction and deduction. To me it does not make sense to talk about induction at all.
People argue that the following is induction:
A_1 is x
A_2 is x
...
- 208
13
votes
2
answers
1k
views
What is the relevance of falsifiability with regards to deductive argumentation?
Are logical propositions that:
rely on deduction, and
are non-falsifiable
not worthy of pursuing?
Or is falsifiability only a requirement on inductive reasoning?
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