Showing posts with label reason. Show all posts
Showing posts with label reason. Show all posts
Monday, November 7, 2011
An introduction to The Genesis Mission page “What is Science?”
Thos page is a discussion of Science. It describes what Science is and is not. The page also links to other articles that go in to more detail on various aspects of Science. You will find it a useful resource to under stand the nature of Science.
Thursday, November 3, 2011
An introduction to Genesis Mission
Genesis Mission
Tuesday, September 27, 2011
Understanding Deductive Reasoning in Science
Deductive
reasoning goes from general to specific by starting with a given set
premises and draws conclusions from them. The conclusions made from deductive reasoning are
only as valid as the premises that are used such that only one false premise can
produce a false conclusion. A deductive argument is considered valid if its
truth necessarily follows from the starting premises and it is sound if the argument
is valid and all of its premises are true other wise it is considered unsound.
Deductive reasoning is heavily dependent on the validity of premises being used. The premises used may be facts derived from observation or a totally philosophical assumption.
A common form of deductive reasoning is called a syllogism
It has three parts.
All X has y.
A general
characteristic of a category of objects.
A is X.
The object under
discussion belongs to that category
A has y.
The conclusion that
the object under discussion has that general characteristic.
Deductive reasoning is heavily dependent on the validity of premises being used. The premises used may be facts derived from observation or a totally philosophical assumption.
A good example comes from proponents of the Big Bang
Cosmology. All observations of the universe are constant with the Earth being near
the center of the universe. Starting with the philosophical assumption that we
are totally the result of natural process; as opposed to being created by God;
it is a logically valid conclusion that we can not be in a special place in the
universe such as the center. As a result they invented an explanation for the
evidence that eliminate the center by making all locations seem to be at the
center. However if we were created by God then we could easily be near the
center of the universe. This is why Creationists and Evolutionists can look at
the same evidence and draw totally different conclusions.
Deductive
reasoning is a very useful tool of reasoning however it does have its
difficulties. It depends heavily on the accuracy its starting premises. However
flawed premises result in flawed conclusions. These difficulties need to be
properly understood to properly understand scientific statements including
those of both Creationists and Evolutionists.
Monday, September 26, 2011
A Discussion of Inductive Reasoning
Inductive
reasoning is reasoning that draws a general conclusion based on a set
of examples.
Basic pattern of Inductive Reasoning
a, b, c, d, e, f, g
and h are part of group A.
a, b, c, d, e, f, g
and h have property G.
All member of group A
have property G.
When used in Science the process starts with observations
and looks for the patterns in the observations to develop a hypothesis as
general description of the observations. Inductive
Reasoning allows for general conclusions to be drawn from specific
observations and evidence. It there by allows conclusions based on patterns in observations
and evidence. Inductive
Reasoning risks the possibility that the sample size may be too small for a
general conclusion. It is prone to being affected by philosophical assumptions
and biases in selection of sample, in the patterns recognized, and in
conclusions
Friday, September 23, 2011
Reasonable Logic
Logic
is the set of principles and rules for reasoning. If it is used correctly and has
the right starting point one will arrive at the correct conclusion.
Deductive reasoning is reasoning that starts with a given set premises and draws a conclusion. Inductive reasoning is reasoning that draws a general conclusion based on a set of examples. So deductive reasoning goes from general principles to specific conclusions. Inductive reasoning goes from specific principles to general conclusions. Both forms of logic are used in science.
Inductive and Deductive reasoning are different and even opposite concepts but in practice deductive and inductive reasoning are often used together even without knowing it. For example one may be drawing a general conclusion form observed evidence (induction) based on general principles called assumptions. (deduction)
Logical fallacies are mistakes in reasoning and can be both deliberate and accidental. It is important to avoid them since they resultant in erroneous conclusions.
Deductive reasoning is reasoning that starts with a given set premises and draws a conclusion. Inductive reasoning is reasoning that draws a general conclusion based on a set of examples. So deductive reasoning goes from general principles to specific conclusions. Inductive reasoning goes from specific principles to general conclusions. Both forms of logic are used in science.
Inductive and Deductive reasoning are different and even opposite concepts but in practice deductive and inductive reasoning are often used together even without knowing it. For example one may be drawing a general conclusion form observed evidence (induction) based on general principles called assumptions. (deduction)
Logical fallacies are mistakes in reasoning and can be both deliberate and accidental. It is important to avoid them since they resultant in erroneous conclusions.
A Discussion of Logical Fallacies in Logic
Logical
Fallacy: An error within a logical argument that is a flaw in the
argument’s structure that is said to invalidate the argument.
A logical fallacy is independent of the truth so a fallacy does not necessarily invalidate the argument's premises and conclusions. However arguments derived from logical fallacies often do lead to an incorrect conclusion due to faulty reasoning.
It is an argument that attacks people holding a particular point of view rather than attacking the point of view itself.
Example: The case where an opponent starts insulting you in some manner rather than countering your argument.
Often it involves taking a small sample and generalizing it to the whole group.
It is an argument which moves from a premise to a conclusion where no connection exists between the two.
Example: A argument is assumed correct because it comes from a person with a PHD.
Originated from discussions with evolutionists, where interpretation from Evolutionary theories are used as arguments against Creation Scienc, despite the fact that Creation Science interprets the same thing differently.
A logical fallacy is independent of the truth so a fallacy does not necessarily invalidate the argument's premises and conclusions. However arguments derived from logical fallacies often do lead to an incorrect conclusion due to faulty reasoning.
Examples
Ad hominem
Latin: “To the Man”It is an argument that attacks people holding a particular point of view rather than attacking the point of view itself.
Example: The case where an opponent starts insulting you in some manner rather than countering your argument.
Overgeneralization
It is an argument
which makes a statement so broad as to exceed the original point that was
trying to be proved. Often it involves taking a small sample and generalizing it to the whole group.
Non sequitur
Latin: "It does not follow" It is an argument which moves from a premise to a conclusion where no connection exists between the two.
Proof by authority
It is an argument
which is based on a person's authority, rather than on the merits of the
authority's position. Example: A argument is assumed correct because it comes from a person with a PHD.
Proof by assertion
It is an argument which simply states something as true
without evidence or argument to support it.
Circular reasoning
It is an argument
that tries to prove something by first asserting it and then trying to
"prove" it.
Straw man
It is an argument where a person argues against a position
similar to but weaker than their opponent’s real position.
Manufacturing facts from a theory
It is an undemonstrated or unobserved idea that is stated as
fact because it agrees with a particular theory.
Your theory does not work under my theory, so your theory must be wrong
Often used by Evolutionists against Creationists it is a form of circular reasoning where the person tries to disprove a point of view by interpreting
the facts through a different view. Originated from discussions with evolutionists, where interpretation from Evolutionary theories are used as arguments against Creation Scienc, despite the fact that Creation Science interprets the same thing differently.
There are many more logical fallacies avoid
them.
Thursday, September 22, 2011
The Burden of Proof in Science
Burden of Proof: The
obligation of a party to provide sufficient evidence in support of their side
of a dispute or issue.
United
States is a good example of this since the
prosecution has the burden of proof since the defendant is assumed innocent
until proven guilty. However this is not an absolute rule given thay some
circumstance can change the burden of proof to some one denying a claim. A
party making the new claim about an accepted idea has the burden of proof. For
example those claiming that the Apollo Moon landings did not really happen have
the Burden of proof.
The biggest problems in a discussion is agreeing on who has the burden of proof. It can consume much time and render a debate useless. Another problem is that since each side sees the issue differently it may be hard to agree on burden of proof.
Actually the term “burden of proof” is a little strong since
it implies the need to prove beyond any doubt so in practice it is really the burden
of evidence. The side that has the burden of proof is obligated to provide
evidence to back up their view point.
Determining the burden of proof is not always easy to do
because it varies in different circumstances and changes in the course of the
discussion.
Finding the Burden of Proof
The burden of proof usually goes to the party making the
claim. A criminal trial in the
Burden of Proof Fallacy
The Burden of Proof Fallacy is the act of wrongfully trying to
switch the burden of proof to your opponent. As an example proponents of
abiogenesis need to prove that it is possible because it is already know that
intelligence can produce complex organized systems. On the other hand there is
no real evidence for abiogenesis. Al its proponents provides is unproven
stories about how it could have happened.
Legitimate Switching of the Burden of Proof
The Burden of Proof can legitimately switch sides if new arguments
have been made or evidence presented. If the opposition wishes to dispute the
new evidence or argument, they have the burden of proof in doing so. Hence the
burden of proof has switched. The biggest problems in a discussion is agreeing on who has the burden of proof. It can consume much time and render a debate useless. Another problem is that since each side sees the issue differently it may be hard to agree on burden of proof.
The Use of Debate in Science
Debate: A formal interactive discussion of opposing
ideas on a specific topic.
Debate in science is a way of handling disputes over theory since both sides get to make their case. A common example of this is debates on Creation Vs Evolution how ever it seldom actually settles the dispute.
A long as both sides get to make their case it is a chance to learn about the other side as well as one’s own. It works best when both sides are given equal footing and respect which doses not always happen.
Since debate seldom actually settles the dispute and one side can actually get insulting ruining the discussion in practice it is only as useful as the participants’ ability to learn from it. If no one learns anything from a debate it’s a waste of time.
Debate in science is a way of handling disputes over theory since both sides get to make their case. A common example of this is debates on Creation Vs Evolution how ever it seldom actually settles the dispute.
A long as both sides get to make their case it is a chance to learn about the other side as well as one’s own. It works best when both sides are given equal footing and respect which doses not always happen.
Since debate seldom actually settles the dispute and one side can actually get insulting ruining the discussion in practice it is only as useful as the participants’ ability to learn from it. If no one learns anything from a debate it’s a waste of time.
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