Reuben
Hersh, the author of the book entitled “What is Mathematics, Really?” was
trying to tell his readers what the classic book entitled “What is
Mathematics?” failed to present. As he has mentioned in the preface, the aforementioned
book only tried to show what math was but did not really talk about what math actually was. In this book, Hersh was trying to illustrate that math was a product of
human activity as seen in the perspective of philosophy. He mentioned that this book was a tribute for “the
love of Mathematics and gratitude to its creators. It was stated that between
philosophy and mathematics, a parallelism could be drawn out of it. Mathematics
is subject to change or is very dynamic just as philosophy is.
A
dialogue between Hersh and a 12-year old girl named Laura transpired and was
stated in the book. From that conversation, it can be inferred that in Math, a lot of
questions are yet to be answered or they may never be answered and you are
never entirely sure about anything because just like philosophy, math is
infinite and limitless. The possibilities in everything are limitless and
ever-changing.
Part one had two
goals and the main topic of interest was the existence of a 4-cube. There was also an inquiry about how many parts
does a 4-cube have? This was a very challenging question. According to the
problem solving principle of Polya, “If you can’t solve a problem, make up a
related problem that you may be able to solve”. Through this, the harder
questions may be answered and as what this statement suggested, related
problems were formulated in order to dig up the answer of the unanswered
inquiries and it has provided us with the answer that a 4-cube has 81 parts.
But when philosophy comes into the picture again, the existence and all other
details of the possibility of the 4-cube is highly questionable. Even the
actuality of a cube had been questioned.
In this book, Hersh repudiates these three
mainstreams of the philosophy of math namely: Platonism, formalism and
intuitionism or constructivisim. Platonism and formalism are the two dominating
views among the minds of mathematicians. Platonism is a very varied form of
philosophy. It stands to tell that math exists outside space and time and even in
realms unknown to mankind. Formalism was mainly stating that “Mathematics
is a meaningless game”. Lastly,
intuitionism or constructivism exemplifies that the natural numbers are the
fundamental basis of mathematics. For Platonism, I could agree with the disapproval
of Hersh due to the contradiction of the definition and what actually exists in
the real world. Mathematics most definitely exists here in the finite world,
ever-changing and dynamic. It stands to give a connection in the phenomena happening
in the physical world. It is present here in our dimension. Mathematics is
certainly interacting and will be interacting with the physical world. In
formalism on the other hand, as stated that math was only just a meaningless
game with arbitrary rules governing it. But Hersh disagrees with that statement.
The rules are not arbitrary. In fact, they have been long determined through “society
which evolved under pressure of the inner workings and interactions of the
social groups” and the biotic and abiotic factors of the earth. Along with these factors, they could also have
been ascertained by the “biological properties” that allowed us, humans to
evolve. They are definitely complicated and mysterious, undoubtedly. But they
most certainly are not arbitrary. Finally, for intuitionism, Hersh strongly
disapproves due to the fact that adopting the natural numbers is certainly not
universal. This philosophy is flawed because natural numbers may only be
relevant and significant if they have been acquired from a finite construction.
It also is contrary to the belief that mathematics is infinite and dynamic.
As
I have stated earlier, Hersh strongly affirms the humanist view of mathematical
philosophy. For him, mathematics should come first and philosophizing would follow. Math is indeed a human activity that has been applied to society
and has evolved throughout history and although these tiny details have been
irrelevant to the philosophical question, “what is mathematics?” without social
and historical input, the philosophical problems of math are troublesome. As he
pointed out, math has a “social-historic reality” which is not controversial. And
another point that he added was that it was not necessary to search for hidden
meanings or definition of mathematics which is beyond its
social-historic-cultural state. All that it needed to be was social-historic.
This
book has been an excellent bridge which paved the way for me to appreciate Math
in a whole new level. I did not really hate Math. In fact, I liked it for it
never failed to surprise me. Every time I get the chance to learn Math, I have
always been excited in some way because I know that there was always something
new in store for me as an addition to my knowledge. Although it was not really
easy to learn, I assumed that Math could be anywhere and that statement that
Math is the language of the universe definitely holds true. This book just
strengthened that liking and I did not regret reading it even though it was
very long. Some parts were a drag but there were more exciting segments that
made me understand why Math was like that. The book managed to relay its message to me
and I hope that a lot of people would read this because indubitably,
there’s a whole lot more to Math than what we already know and perceive.
Hi, this is my own opinion on the philosophical pedagogy of mathematics:
ReplyDeleteI would have to argue that 'What is mathematics?' is a rather literally misconstrued question, in a philosophical sense. We find it to be rather anchored in the concept of time-- be it present or past. In the present, I'd say Math is reasoning using abstractions, and is bloody difficult. Whereas, the exact origin of Logic remains elusive. The paradigm that logic and reason is the only way in completely understanding the world of abstractions and metaphysics is highly pragmatic, and somewhat fallacious. For one thing, the one who crafted logic and the ones using it are all physical entities, human beings, which are conscious and real. For another, whether it exists or not cannot be ascertained. Hence whether it even exists remain a product of complex philosophical inquiry. Albeit, I'm talking about the pure type of mathematics here though. There's also the possibility that despite it being an area untouched by the physical realm-- mathematics may be more of a consequence than a mechanism in understanding reality. There may be something preceding it, that ultimately led to its existence...like a historical directionality of some sort and that Math may actually be a historical science rather than the birthplace of epiphanies.
Although this is just me babbling.
I like the controversy in this piece, and this really made me ruminate. Kudos!
Hersh showed biasness towards his "proposed" philosophical approach. You have strongly discussed the keypoints well. Good job! :)
ReplyDeleteYou have created a wonderful piece. Yes, piece. Not just a book review. It was really nice and I appreciated it! My time was not wasted. Good one! :))
ReplyDeleteAww thanks Ka :3 hihi. Your comment was very inspiring :>
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ReplyDeletewhat bakit nadelete =.=
Deletegood read and well done i might not agree with what hersh concludes but the first three philosophical views do seem rather flawed to me..
To me though math would be the rule that governs all other rules, but cannot exist without said rules.
Good point actually. Baka may ibang book na aatakihin naman yung punto ni Hersh haha
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