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- $( <MM> <PROOF_ASST> THEOREM=cnioobibld LOC_AFTER=?
- *
- A continuous function on an open interval which is bounded is integrable. See cniccibl for closed intervals.
- h1::cnioobibld.1 |- ( ph -> A e. RR )
- h2::cnioobibld.2 |- ( ph -> B e. RR )
- h3::cnioobibld.3 |- ( ph -> F e. ( ( A (,) B ) -cn-> CC ) )
- h4::cnioobibld.4 |- ( ph -> E. x e. RR A. y e. dom F ( abs ` ( F ` y ) ) <_ x )
- 10::ioombl |- ( A (,) B ) e. dom vol
- 10a:10:a1i |- ( ph -> ( A (,) B ) e. dom vol )
- 20::cnmbf |- ( ( ( A (,) B ) e. dom vol /\ F e. ( ( A (,) B ) -cn-> CC ) ) -> F e. MblFn )
- 20a:10a,3,20:syl2anc |- ( ph -> F e. MblFn )
- *
- 30::cncff |- ( F e. ( ( A (,) B ) -cn-> CC ) -> F : ( A (,) B ) --> CC )
- 31::fdm |- ( F : ( A (,) B ) --> CC -> dom F = ( A (,) B ) )
- 32:3,30,31:3syl |- ( ph -> dom F = ( A (,) B ) )
- 33:32:fveq2d |- ( ph -> ( vol ` dom F ) = ( vol ` ( A (,) B ) ) )
- 34::ioovolcl |- ( ( A e. RR /\ B e. RR ) -> ( vol ` ( A (,) B ) ) e. RR )
- 35:1,2,34:syl2anc |- ( ph -> ( vol ` ( A (,) B ) ) e. RR )
- 36:33,35:eqeltrd |- ( ph -> ( vol ` dom F ) e. RR )
- *
- 1000::bddibl |- ( ( F e. MblFn /\ ( vol ` dom F ) e. RR /\ E. x e. RR A. y e. dom F ( abs ` ( F ` y ) ) <_ x )
- -> F e. L^1 )
- qed:20a,36,4,1000:syl3anc |- ( ph -> F e. L^1 )
- $= ( cmbf wcel cdm cvol cfv cr cv co cc syl2anc cabs cle wral wrex
- wbr cibl cioo ccncf ioombl a1i cnmbf wceq cncff fdm 3syl fveq2d
- wf ioovolcl eqeltrd bddibl syl3anc ) AFKLZFMZNOZPLCQFOUAOBQUBUE
- CVCUCBPUDFUFLADEUGRZNMLZFVESUHRLZVBVFADEUIUJIVEFUKTAVDVENOZPAVC
- VENAVGVESFUQVCVEULIVESFUMVESFUNUOUPADPLEPLVHPLGHDEURTUSJBCFUTVA
- $.
- $d x y
- $d F x
- $d F y
- $)
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