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Theorem ho2coi 23284
 Description: Double composition of Hilbert space operators. (Contributed by NM, 1-Dec-2000.) (New usage is discouraged.)
Hypotheses
Ref Expression
hods.1
hods.2
hods.3
Assertion
Ref Expression
ho2coi

Proof of Theorem ho2coi
StepHypRef Expression
1 hods.1 . . . 4
2 hods.2 . . . 4
31, 2hocofi 23269 . . 3
4 hods.3 . . 3
53, 4hocoi 23267 . 2
64ffvelrni 5869 . . 3
71, 2hocoi 23267 . . 3
86, 7syl 16 . 2
95, 8eqtrd 2468 1
 Colors of variables: wff set class Syntax hints:   wi 4   wceq 1652   wcel 1725   ccom 4882  wf 5450  cfv 5454  chil 22422 This theorem is referenced by:  pj2cocli  23708 This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1555  ax-5 1566  ax-17 1626  ax-9 1666  ax-8 1687  ax-13 1727  ax-14 1729  ax-6 1744  ax-7 1749  ax-11 1761  ax-12 1950  ax-ext 2417  ax-sep 4330  ax-nul 4338  ax-pow 4377  ax-pr 4403 This theorem depends on definitions:  df-bi 178  df-or 360  df-an 361  df-3an 938  df-tru 1328  df-ex 1551  df-nf 1554  df-sb 1659  df-eu 2285  df-mo 2286  df-clab 2423  df-cleq 2429  df-clel 2432  df-nfc 2561  df-ne 2601  df-ral 2710  df-rex 2711  df-rab 2714  df-v 2958  df-sbc 3162  df-dif 3323  df-un 3325  df-in 3327  df-ss 3334  df-nul 3629  df-if 3740  df-sn 3820  df-pr 3821  df-op 3823  df-uni 4016  df-br 4213  df-opab 4267  df-id 4498  df-xp 4884  df-rel 4885  df-cnv 4886  df-co 4887  df-dm 4888  df-rn 4889  df-res 4890  df-ima 4891  df-iota 5418  df-fun 5456  df-fn 5457  df-f 5458  df-fv 5462
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