Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1 2011-01-04 02:38:30

soroban
Member
Registered: 2007-03-09
Posts: 451

Proof without words - 2

.

. . . . . . . . . . .

.

Offline

#2 2011-01-13 17:09:15

nguyen
Member
Registered: 2011-01-13
Posts: 1

Re: Proof without words - 2

this is not proof, though. can you prove it in general?

Offline

#3 2011-01-13 18:55:58

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,258

Re: Proof without words - 2

Hi nguyen

Welcome to the forum.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Offline

#4 2011-01-14 16:32:48

MarvinRayBurns
Member
Registered: 2011-01-09
Posts: 13

Re: Proof without words - 2

You must be careful, but many proofs can be made by pictures alone. You must use caution because picture proofs can charm your intuition which can be easily fooled and furthermore, it is easy to ignore important conditions to your theorems!

Offline

Board footer

Powered by FluxBB