, ψ φ'. , (, , ) .
, :
1. , , (. 6.26, ), (. 6.26, , ) . . -
S) )
. 6.26.
- , .
1 (. 6.26, ) . . , , . .
(. 6.26, ). .
2. , . . (. 6.27, ), (. 6.27, ), , (. 6.27, ). , , .
3. (. 6.28, ) : (. 6.28,5), (. 6.28, ). , .
4. , , , .
. 6.27. |
. 6.28.