Hi, I've heard of this one name, or rather it's a name of language that they use on chatting or using password, that goes like changing a to @, o to (), s to $, etc etc. Anyone knows what is the name of that thing?
Firstly, where do I have to post if i have a question on LaTeX?
and here's the question,
\vdash_{A}
how do I make that subscript exactly below the line - on that simbol?
hmm, you know xg-1 in in the kernel, then (xg-1)g is in {kg | k ∈ ker i}, so this conclude that i^−1(h) is subset of {kg | k ∈ ker i}.
now left to show is {kg | k ∈ ker i} subset of i^−1(h)
Homework Statement let a,b be positive integer , c is real number, and -a<c<b
i want to show there exist integer m, -a \leq m \leq b such that m-1 \leq c<m
i don't know any easy method, but this is where i got now,
Let set S=[m|-a \leq m \leq b]
So by contradiction,
suppose that for all m...
aaaaaaaaaaaarghh, yes yes, thank you ^^
hmm, now i have to prove that
(a_n)
is convergent,
i suspect i should prove that
(a_n)
is bounded then, i know
(a_n)
is monotone then,
(a_n)
must be converging right? then continue like i was doing above right?
Homework Statement
Results
i) if (a_n) tends to L as n tends to infinity, then a_{n_r} tends to L as r tend to infinity
ii)if (a_n) tends to infinity as n tends to infinity, then a_{n_r} tends to infinity as r tend to infinity
using this result prove that
if (a_n) is an increasing...
if you want to show their element is closed, you have to show any two element in
g^{-1}Ng
when multiply, it still in
g^{-1}Ng
, not in G.
so if x and y is in
g^{-1}Ng
, what can you say about x and y??
and you need to show x*y is in
g^{-1}Ng
p/s: sorry if my english terrible