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At: split factor1 char 1

1. k : {2...}
2. g : {2..k}
3. x : {2..k}
4. xx<k
5. x<xx
6. h : {2..k}
7. h = split_factor1(gx)
8. h(xx) = 0
9. h(x) = g(x)+g(xx)+g(xx)
10. u:{2..k}. u = x  u = xx  h(u) = g(u)
  {2..k}(g) = {2..k}(h)


By: Split the product at xx, and xx using
Thm*  a,c,b:f:({a..b}).
Thm*  ac  c<b  {a..b}(f) = {a..c}(f)cf(c){c+1..b}(f)


Generated subgoal:

1   {2..x}(g)xg(x){x+1..xx}(g)(xx)g(xx){xx+1..k}(g)
  =
  {2..x}(h)xh(x){x+1..xx}(h)(xx)h(xx){xx+1..k}(h)

9 steps

About:
intnatural_numberaddmultiplyless_thanlambdaapplyfunctionequalimpliesall
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(16steps total) PrintForm Definitions Lemmas FTA Sections DiscrMathExt Doc