Step
*
1
1
of Lemma
int_term_value_minus_lemma
1. x : Top@i
2. f : Top@i
⊢ -int_term_ind(x;
                itermConstant(const)
⇒ const;
                itermVar(var)
⇒ f var;
                itermAdd(left,right)
⇒ rec1,rec2.rec1 + rec2;
                itermSubtract(left,right)
⇒ rec3,rec4.rec3 - rec4;
                itermMultiply(left,right)
⇒ rec5,rec6.rec5 * rec6;
                itermMinus(num)
⇒ rec7.-rec7)  ~ -int_term_value(f;x)
BY
{ Try (RW (AddrC [2] (UnfoldC `int_term_value`)) 0)⋅ }
1
1. x : Top@i
2. f : Top@i
⊢ -int_term_ind(x;
                itermConstant(const)
⇒ const;
                itermVar(var)
⇒ f var;
                itermAdd(left,right)
⇒ rec1,rec2.rec1 + rec2;
                itermSubtract(left,right)
⇒ rec3,rec4.rec3 - rec4;
                itermMultiply(left,right)
⇒ rec5,rec6.rec5 * rec6;
                itermMinus(num)
⇒ rec7.-rec7)  ~ -int_term_ind(x;
                                                               itermConstant(n)
⇒ n;
                                                               itermVar(v)
⇒ f v;
                                                               itermAdd(l,r)
⇒ rl,rr.rl + rr;
                                                               itermSubtract(l,r)
⇒ rl,rr.rl - rr;
                                                               itermMultiply(l,r)
⇒ rl,rr.rl * rr;
                                                               itermMinus(x)
⇒ r.-r) 
Latex:
Latex:
1.  x  :  Top@i
2.  f  :  Top@i
\mvdash{}  -int\_term\_ind(x;
                                itermConstant(const){}\mRightarrow{}  const;
                                itermVar(var){}\mRightarrow{}  f  var;
                                itermAdd(left,right){}\mRightarrow{}  rec1,rec2.rec1  +  rec2;
                                itermSubtract(left,right){}\mRightarrow{}  rec3,rec4.rec3  -  rec4;
                                itermMultiply(left,right){}\mRightarrow{}  rec5,rec6.rec5  *  rec6;
                                itermMinus(num){}\mRightarrow{}  rec7.-rec7)    \msim{}  -int\_term\_value(f;x)
By
Latex:
Try  (RW  (AddrC  [2]  (UnfoldC  `int\_term\_value`))  0)\mcdot{}
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