苦中作樂的數學人們

人說當學生是幸福的，不用擔心生活的壓力，我想是對的。但是學生有學生說不出的苦，尤其是研究生，那些關於自己的才智以及自己的未來之類的迷惘。未來的迷惘就不用說了。面對看似簡單的問題（至少教授們都說簡單），在一次次磨刀霍霍提槍上陣後，卻一次次的敗陣下來，常常會令你不得不佩服自己的愚笨。

我常形容念博班的人是傻子，辛辛苦苦的爬出火坑，拿了碩士文憑（雖然論文都沒什麼價值，最後拿來墊便當比較多），又一頭地往火山口跳下去，就這樣，有一半的人在裡面被活活的燒死。

人們通常對自己的選擇都執迷不悟，所以我們這些傻子只好想辦法苦中作樂，記得以前在BBS看過一篇文章叫數學系的情書，利用數學人的"行話"，來描寫男女情愛，形容得絲絲入扣，可惜沒有存下來，如今搜尋已不復蹤影。今天唸書之餘隨便亂逛，發現 The Klein Four Group 這個有趣的團體（團名本身就是一個數學結構），是一群 Northwestern University Mathematics Department 學生組成。作了很多有趣且跟數學有關的歌。
以下是其中一首歌的歌詞：

The path of love is never smooth
But mine's continuous for you
You're the upper bound in the chains of my heart
You're my Axiom of Choice, you know it's true

But lately our relation's not so well-defined
And I just can't function without you
I'll prove my proposition and I'm sure you'll find
We're a finite simple group of order two

I'm losing my identity
I'm getting tensor every day
And without loss of generality
I will assume that you feel the same way

Since every time I see you, you just quotient out
The faithful image that I map into
But when we're one-to-one you'll see what I'm about
'Cause we're a finite simple group of order two

Our equivalence was stable,
A principal love bundle sitting deep inside
But then you drove a wedge between our two-forms
Now everything is so complexified

When we first met, we simply connected
My heart was open but too dense
Our system was already directed
To have a finite limit, in some sense

I'm living in the kernel of a rank-one map
From my domain, its image looks so blue,
'Cause all I see are zeroes, it's cruel trap
But we're a finite simple group of order two

I'm not the smoothest operator in my class,
But we're a mirror pair, me and you,
So let's apply forgetful functors to the past
And be a finite simple group, a finite simple group,
Let's be a finite simple group of order tow
(Oughter: "Why not tree?")

I've proved my proposition now, as you can see,
So let's both be associative and free
And by corollary, this shows you and I to be
Purely inseparable. Q.E.D.
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念數學的人看了其中歌詞鐵定會會心一笑。看來外國人苦中作樂也挺在行的。
PS: 離考試越近似乎越難專心唸書說...........切！