Nuprl Lemma : one_or_both_ind_oobboth_lemma

right,left,both,bval:Top.
  (one_or_both_ind(oobboth(bval);bval.both[bval];lval.left[lval];rval.right[rval]) both[bval])


Proof




Definitions occuring in Statement :  one_or_both_ind: one_or_both_ind(x;bval.both[bval];lval.left[lval];rval.right[rval]) oobboth: oobboth(bval) top: Top so_apply: x[s] all: x:A. B[x] sqequal: t
Definitions unfolded in proof :  all: x:A. B[x] member: t ∈ T oobboth: oobboth(bval) one_or_both_ind: one_or_both_ind(x;bval.both[bval];lval.left[lval];rval.right[rval])
Lemmas referenced :  top_wf
Rules used in proof :  sqequalSubstitution sqequalTransitivity computationStep sqequalReflexivity lambdaFormation cut hypothesis lemma_by_obid sqequalRule

Latex:
\mforall{}right,left,both,bval:Top.
    (one\_or\_both\_ind(oobboth(bval);bval.both[bval];lval.left[lval];rval.right[rval])  \msim{}  both[bval])



Date html generated: 2016_05_15-PM-05_32_55
Last ObjectModification: 2015_12_27-PM-02_09_27

Theory : general


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