Step
*
1
1
of Lemma
subtract-wf-partial
1. x : partial(Base)
2. y : partial(Base)
3. partial(Base) ⊆r Base
4. is-exception(x - y)@i
5. ¬is-exception(x)
6. ¬is-exception(y)
⊢ False
BY
{ (SquashConcl THEN (ExceptionCases (-3) THEN Auto) THEN ExceptionCases (-1) THEN Auto) }
Latex:
Latex:
1. x : partial(Base)
2. y : partial(Base)
3. partial(Base) \msubseteq{}r Base
4. is-exception(x - y)@i
5. \mneg{}is-exception(x)
6. \mneg{}is-exception(y)
\mvdash{} False
By
Latex:
(SquashConcl THEN (ExceptionCases (-3) THEN Auto) THEN ExceptionCases (-1) THEN Auto)
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