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Step * 1 1 1 4 of Lemma ifthenelse_wf-partial


1. T : Type
2. value-type(T)
3. c1 : partial(T)
4. c2 : partial(T)
5. b : base-partial(𝔹)
6. b1 : base-partial(𝔹)
7. per-partial(𝔹;b;b1)
8. is-exception(b1)
⊢ b1 ≤ b
BY
{ (InstLemma `base-partial-not-exception` [⌜𝔹⌝;⌜b1⌝]⋅ THEN Auto) }

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Latex:

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Latex:

1.  T  :  Type
2.  value-type(T)
3.  c1  :  partial(T)
4.  c2  :  partial(T)
5.  b  :  base-partial(\mBbbB{})
6.  b1  :  base-partial(\mBbbB{})
7.  per-partial(\mBbbB{};b;b1)
8.  is-exception(b1)
\mvdash{}  b1  \mleq{}  b


By

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Latex:
(InstLemma  `base-partial-not-exception`  [\mkleeneopen{}\mBbbB{}\mkleeneclose{};\mkleeneopen{}b1\mkleeneclose{}]\mcdot{}  THEN  Auto)

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