1. Introduction
Definition 1. For every coordinate system, there is no immediate reason for pre- ferring certain systems of co-ordinates to others.
Definition 2. I named 
 “Binary Law”.
Definition 3. 
is established.
Definition 4. 
is established.
Definition 5. 
is established.
Definition 6. Convariant and contravariant tensor of the first rank 
 satisfied 
 [1] .
Definition 7. Tensor of rank zero 
 satisfied 
 [1] .
Definition 8. If tensor 
 satisfied
, this tensor 
 was named sym- metric tensor [1] .
Definition 9. Convariant differentiation for Convariant Bector 
 satisfied 
 [1] .
Definition 10. 
and 
 are establishment [2] .
Definition 11. Convariant differentiation for contravariant bector 
 satisfied 
 [2] .
Definition 12. Convariant differentiation for Scalar 
 satisfied 
 [2] .
2. About Reason to Take Binary Law into Consideration
We will have to receive existence of the absolute coordinate system if Definition 1 is not established. Therefore, we must accept establishment of Definition 1.
Proposition 1. Definition 1 is not established for all coordinate systems ![]()
Proof: All coordinate systems 
 thinks about 
 in a standard and can divide it into two next groups.
![]()
 (1)
I think that I change the coordinate systems of the standard 
 of (1) for all coordi- nate systems 
 sequentially now. By the way, the difference cannot occur between each conclusion to be provided here if Definition 1 is established. This reason is that all coordinate systems 
 has a privilege of the equality each other if Definition 1 is established. At first (1) gets an invariable conclusion for 
 exchange. Therefore, at least (1) must get an invariable conclusion for the next 
 exchange if Definition 1 is established. Here, I get
![]()
 (2)
by 
 exchange from (1). Therefore, (2) must be equal with (1) if Definition 1 is established. By the way, 
of (1) is equal with 
 of (2), but 
 of (1) is not equal with 
 of (2). In other words, (2) is not equal with (1). Therefore, Definition 1 is not established for all coor- dinate systems
.
-End Proof
Establishment of Proposition 1 is a problem in thinking that Definition 1 must be established. Therefore, I aim at getting establishment of Definition 1 for all coordinate systems
.
Proposition 2. If all coordinate systems 
 satisfies 
, Definition 1 is established for all coordinate systems
.
Proof: I get
![]()
 (3)
![]()
 (4)
from (1), (2) if all coordinate systems 
 satisfies
 (5)
(3) is equal with (4) here. In other words, (2) is equal with (1) if all coordinate sys- tems 
 satisfies (5). Therefore, Definition 1 is established for all coordi- nate systems 
 if all coordinate systems 
 satisfies (5).
-End Proof
Proposition 3. If all coordinate systems 
 satisfies 
, all coordinate systems 
 shifts to only two of ![]()
Proof: If all coordinate systems 
 satisfies (5), I get 
 than all coordinate systems
.
-End Proof
Proposition 4. If 
 is established, 
is esta- blished.
Proof: I get
 (6)
from (5), (7) if I assume establishment of
 (7)
when (5) is established. Because (6) includes contradiction,
 (8)
is established when (5) is established.
-End Proof
Proposition 5. If 
 is established, 
 are established.
Proof: When (5) is established, (8) is established from Proposition 4. Therefore, I get
 (9)
from (8), (10) if I assume establishment of 
 when (5) is established. I can rewrite 
 as
 (10)
here. When (5) is established, I get
 (11)
from Definition 3. Because (9) includes contradiction for (11),
 (12)
is established when (5) is established.
Similary, I get
 (13)
from (8), (14) if I assume establishment of 
 when (5) is established. I can rewrite 
 as
 (14)
here. When (5) is established, I get
 (15)
from Definition 4. Because (13) includes contradiction for (15),
 (16)
is established when (5) is established.
Similary, I get
 (17)
from (8), (18) if I assume establishment of 
 when (5) is established. I can rewrite 
 as
 (18)
here. When (5) is established, I get
 (19)
from Definition 5. Because (17) includes contradiction for (19),
 (20)
is established when (5) is established. And, I get
 (21)
from (12), (16), (20).
-End Proof
3. About the Tensor Which Satisfied Binary Law
We will have to think about adaptation of the establishment of Binary Law for the coordinate systems 
 in the tensor if we think about establishment of Binary Law for all coordinate systems
. Therefore, I decided to report Tensor when all coordinate systems 
 satisfied Binary Law.
Proposition 6. If all coordinate systems 
 satisfied 
, Convariant and Contravariant Tensor of the first rank does not change the form of the equation.
Proof: I get
 (22)
from Definition 6 if all coordinate systems 
 satisfies (5). Definition 6 and (22) are equal here. Therefore, if all coordinate systems 
 satisfied (5), Convariant and Contravariant Tensor of the first rank does not change the form of the equation.
-End Proof
Proposition 7. Tensor of the second rank becomes Symmetric Tensor if all coor- dinate systems 
 satisfies ![]()
Proof: I get
 (23)
from Definition 7 if all coordinate systems 
 satisfies (5). Definition 7 and (23) are equal here. We can use (12), (16), (20), (21) for (23) by considering Pro- position 5 here. And we can rewrite (23) by using (12), (16) for
 (24)
Then, I get
 (25)
from (23),(24). And we can rewrite (23) by using (20), (21) for
 (26)
Then, I get
 (27)
from (26). Therefore, Tensor of the second rank becomes Symmetric Tensor than consideration of Definition 8 when all coordinate systems 
 satisfies (5).
-End Proof
Proposition 8. If all coordinate systems 
 satisfied 
, The distance of two points be able to change oneself in connection with the metric of space.
Proof: I get
 (28)
from Definition 10 if all coordinate systems 
 satisfies (5). I get
![]()
 (29)
 (30)
 (31)
from Definition 9 if all coordinate systems 
 satisfies (5). By the way, we cannot handle (30), (31) according to Proposition 3. We can use (12), (16), (20), (21) for (29) by considering Proposition 5 here. And we must rewrite (29) by using (16) for
 (32)
 (33)
I decide not to handle (33) by consideration of (28) here. Well, I get conclution from (32) that if all coordinate systems 
 satisfied (5), Scalar quantity be able to change oneself in connection with the metric of space. Here, This Scalar quantity expressed the all of quantity expressed as Scalar. Therefore, I get conclution that the distance of two points be able to change oneself in connection with the metric of space.
-End Proof
Proposition 9. If all coordinate systems 
 satisfied 
, convariant differentiation for Contravariant Bector 
 behave like a convariant differentiation for Scalar ![]()
Proof: I get
![]()
 (34)
 (35)
 (36)
from Definition 11 if all coordinate systems 
 satisfies (5). By the way, we cannot handle (35), (36) according to Proposition 3. We can use (12), (16), (20), (21) for (34) by considering Proposition 5 here. And we must rewrite (34) by using (21) for
![]()
 (37)
And, I can get
 (38)
from (37) for consideration of (28). And we can rewrite (38) by using (21) for
 (39)
Because the second term of the right side of (38) does not exist here, we may adopt (38) and (39) description form of which. Well, I get conclution from (39), Definition 12 that if all coordinate systems 
 satisfied (5), Convariant differentiation for Contravariant Bector 
 behave like a Convariant differentiation for Scalar
.
-End Proof
4. Discussion
About Definition 2:
I named (5) “Binary Law” by Proposition 3.
About Proposition 6:
Convariant and contravariant tensor of the first rank don’t change the formula whether it’s satisfied (5) or not.
About Proposition 8:
In (32), we can think that 
 expressed the distance of two points in 
 is
establishment and this is constant. And, 
expresses the distance of two points in general and this is not constant.
About Proposition 9:
In (39), we can handle 
 as tensor similarly
.