Nuprl Lemma : topfuneq-equiv-ext

X,Y:Space.  EquivRel(topfun(X;Y);f,g.topfuneq(X;Y;f;g))


Proof




Definitions occuring in Statement :  topfuneq: topfuneq(X;Y;f;g) topfun: topfun(X;Y) topspace: Space equiv_rel: EquivRel(T;x,y.E[x; y]) all: x:A. B[x]
Definitions unfolded in proof :  so_apply: x[s1;s2] so_lambda: λ2y.t[x; y] squash: T or: P ∨ Q guard: {T} prop: has-value: (a)↓ implies:  Q all: x:A. B[x] and: P ∧ Q strict4: strict4(F) uimplies: supposing a top: Top so_apply: x[s1;s2;s3;s4] so_lambda: so_lambda(x,y,z,w.t[x; y; z; w]) uall: [x:A]. B[x] topeq-equiv topeq_transitivity topeq_inversion topeq_weakening topfuneq-equiv tfunequiv: tfunequiv(X;Y) spreadn: let a,b,c,d,e in v[a; b; c; d; e] member: t ∈ T
Lemmas referenced :  strict4-spread is-exception_wf base_wf has-value_wf_base lifting-strict-spread topfuneq-equiv topeq-equiv topeq_transitivity topeq_inversion topeq_weakening
Rules used in proof :  because_Cache inlFormation imageElimination imageMemberEquality inrFormation applyExceptionCases hypothesisEquality closedConclusion baseApply callbyvalueApply lambdaFormation independent_pairFormation independent_isectElimination voidEquality voidElimination isect_memberEquality baseClosed isectElimination equalitySymmetry equalityTransitivity sqequalHypSubstitution thin sqequalRule hypothesis extract_by_obid instantiate cut sqequalReflexivity computationStep sqequalTransitivity sqequalSubstitution introduction

Latex:
\mforall{}X,Y:Space.    EquivRel(topfun(X;Y);f,g.topfuneq(X;Y;f;g))



Date html generated: 2018_07_29-AM-09_48_39
Last ObjectModification: 2018_06_21-AM-10_38_32

Theory : inner!product!spaces


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