: f (1, , m)
h1(x1,...,xn), h2(x1,...,xn),...,hm(x1,...,xn)
f(h1(x1,...,xn),..., hm(x1,...,xn)).
,
S(S((Z(x)) )) = n, n.
n, .
S(S((S(x)) )) = x + n,
.
n + 1- n- n + 2 - .
:
f(x1,...,xn, 0) = g(x1,...,xn)
f(x1,...,xn, y) = h(x1,...,xn, y-1, f(x1,...,xn, y-1))
n+1- n-.
- :
f(0) = const
f(y) = h(y - 1, f(y - 1))
,
-.
: .
fS(x, 0) = g(x) = I(x) = x
fS(x, 1) = h(x, 0, fS(x, 0)) = h(x, 0, x) = h ` (I3(3)((x, 0, x)) = S(x) = x + 1
fS(x, 2) = h(x, 1, fS(x,1)) = h(x, 1, x+1) = S(x + 1) = x + 2
...
fS(x, y) = h(x, 1, fS(x, y - 1)) = S(fS (x, y - 1)) = x + y
, - , :
x + y = x + (y - 1) + 1
.
fp(x, 0) = y(x) = z(0) = 0
fp(x, 1) = h(x, 0, fp(x, 0)) = h(x, 0, 0) = h ` (I1,3(3)((x, 0, 0)) = fS(x, 0) = x
fp(x,2) = h ` (x, fp(x, 1)) = fS(x, x) = 2x
fp(x,y) = fS(x, fp(x, y - 1))
, - ,
x*y = x*(y - 1) + x
M-.
my[g(x1,..., xn, y) = 0]
y - .
m- .
( ). (x1,..., xn).
y , . m- y,
. m- ,
,
.
.
g(, y) = + 3. = 1
my[g(1, y) = 0] = 4
1 4 + 3 = 0.
(,
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. -
- .
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