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Theorem msrfo 36046
Description: The reduct of a pre-statement is a statement. (Contributed by Mario Carneiro, 18-Jul-2016.)
Hypotheses
Ref Expression
mstaval.r 𝑅 = (mStRed‘𝑇)
mstaval.s 𝑆 = (mStat‘𝑇)
msrfo.p 𝑃 = (mPreSt‘𝑇)
Assertion
Ref Expression
msrfo 𝑅:𝑃onto𝑆

Proof of Theorem msrfo
StepHypRef Expression
1 msrfo.p . . . . 5 𝑃 = (mPreSt‘𝑇)
2 mstaval.r . . . . 5 𝑅 = (mStRed‘𝑇)
31, 2msrf 36042 . . . 4 𝑅:𝑃𝑃
4 ffn 6705 . . . 4 (𝑅:𝑃𝑃𝑅 Fn 𝑃)
53, 4ax-mp 5 . . 3 𝑅 Fn 𝑃
6 dffn4 6798 . . 3 (𝑅 Fn 𝑃𝑅:𝑃onto→ran 𝑅)
75, 6mpbi 233 . 2 𝑅:𝑃onto→ran 𝑅
8 mstaval.s . . . 4 𝑆 = (mStat‘𝑇)
92, 8mstaval 36044 . . 3 𝑆 = ran 𝑅
10 foeq3 6790 . . 3 (𝑆 = ran 𝑅 → (𝑅:𝑃onto𝑆𝑅:𝑃onto→ran 𝑅))
119, 10ax-mp 5 . 2 (𝑅:𝑃onto𝑆𝑅:𝑃onto→ran 𝑅)
127, 11mpbir 234 1 𝑅:𝑃onto𝑆
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wb 209   = wceq 1569  ran crn 5661   Fn wfn 6531  wf 6532  ontowfo 6534  cfv 6536  mPreStcmpst 35973  mStRedcmsr 35974  mStatcmsta 35975
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1824  ax-4 1838  ax-5 1939  ax-6 1996  ax-7 2037  ax-8 2144  ax-9 2152  ax-10 2175  ax-11 2191  ax-12 2212  ax-ext 2734  ax-rep 5237  ax-sep 5256  ax-nul 5268  ax-pow 5335  ax-pr 5403  ax-un 7734
This proof depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1104  df-tru 1572  df-fal 1582  df-ex 1809  df-nf 1813  df-sb 2096  df-mo 2566  df-eu 2596  df-clab 2741  df-cleq 2754  df-clel 2837  df-nfc 2911  df-ne 2958  df-ral 3079  df-rex 3089  df-reu 3369  df-rab 3416  df-v 3456  df-sbc 3744  df-csb 3853  df-dif 3907  df-un 3909  df-in 3911  df-ss 3921  df-nul 4286  df-if 4487  df-pw 4563  df-sn 4589  df-pr 4591  df-op 4595  df-ot 4597  df-uni 4872  df-iun 4957  df-br 5109  df-opab 5173  df-mpt 5192  df-id 5555  df-xp 5666  df-rel 5667  df-cnv 5668  df-co 5669  df-dm 5670  df-rn 5671  df-res 5672  df-ima 5673  df-iota 6492  df-fun 6538  df-fn 6539  df-f 6540  df-f1 6541  df-fo 6542  df-f1o 6543  df-fv 6544  df-1st 7984  df-2nd 7985  df-mpst 35993  df-msr 35994  df-msta 35995
This theorem is used by: (None)
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