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Theorem elmthm 32897
 Description: A theorem is a pre-statement, whose reduct is also the reduct of a provable pre-statement. (Contributed by Mario Carneiro, 18-Jul-2016.)
Hypotheses
Ref Expression
mthmval.r 𝑅 = (mStRed‘𝑇)
mthmval.j 𝐽 = (mPPSt‘𝑇)
mthmval.u 𝑈 = (mThm‘𝑇)
Assertion
Ref Expression
elmthm (𝑋𝑈 ↔ ∃𝑥𝐽 (𝑅𝑥) = (𝑅𝑋))
Distinct variable groups:   𝑥,𝐽   𝑥,𝑅   𝑥,𝑇   𝑥,𝑋
Allowed substitution hint:   𝑈(𝑥)

Proof of Theorem elmthm
StepHypRef Expression
1 mthmval.r . . . 4 𝑅 = (mStRed‘𝑇)
2 mthmval.j . . . 4 𝐽 = (mPPSt‘𝑇)
3 mthmval.u . . . 4 𝑈 = (mThm‘𝑇)
41, 2, 3mthmval 32896 . . 3 𝑈 = (𝑅 “ (𝑅𝐽))
54eleq2i 2905 . 2 (𝑋𝑈𝑋 ∈ (𝑅 “ (𝑅𝐽)))
6 eqid 2822 . . . . 5 (mPreSt‘𝑇) = (mPreSt‘𝑇)
76, 1msrf 32863 . . . 4 𝑅:(mPreSt‘𝑇)⟶(mPreSt‘𝑇)
8 ffn 6494 . . . 4 (𝑅:(mPreSt‘𝑇)⟶(mPreSt‘𝑇) → 𝑅 Fn (mPreSt‘𝑇))
97, 8ax-mp 5 . . 3 𝑅 Fn (mPreSt‘𝑇)
10 elpreima 6810 . . 3 (𝑅 Fn (mPreSt‘𝑇) → (𝑋 ∈ (𝑅 “ (𝑅𝐽)) ↔ (𝑋 ∈ (mPreSt‘𝑇) ∧ (𝑅𝑋) ∈ (𝑅𝐽))))
119, 10ax-mp 5 . 2 (𝑋 ∈ (𝑅 “ (𝑅𝐽)) ↔ (𝑋 ∈ (mPreSt‘𝑇) ∧ (𝑅𝑋) ∈ (𝑅𝐽)))
126, 2mppspst 32895 . . . . 5 𝐽 ⊆ (mPreSt‘𝑇)
13 fvelimab 6719 . . . . 5 ((𝑅 Fn (mPreSt‘𝑇) ∧ 𝐽 ⊆ (mPreSt‘𝑇)) → ((𝑅𝑋) ∈ (𝑅𝐽) ↔ ∃𝑥𝐽 (𝑅𝑥) = (𝑅𝑋)))
149, 12, 13mp2an 691 . . . 4 ((𝑅𝑋) ∈ (𝑅𝐽) ↔ ∃𝑥𝐽 (𝑅𝑥) = (𝑅𝑋))
1514anbi2i 625 . . 3 ((𝑋 ∈ (mPreSt‘𝑇) ∧ (𝑅𝑋) ∈ (𝑅𝐽)) ↔ (𝑋 ∈ (mPreSt‘𝑇) ∧ ∃𝑥𝐽 (𝑅𝑥) = (𝑅𝑋)))
1612sseli 3938 . . . . . 6 (𝑥𝐽𝑥 ∈ (mPreSt‘𝑇))
176, 1msrrcl 32864 . . . . . 6 ((𝑅𝑥) = (𝑅𝑋) → (𝑥 ∈ (mPreSt‘𝑇) ↔ 𝑋 ∈ (mPreSt‘𝑇)))
1816, 17syl5ibcom 248 . . . . 5 (𝑥𝐽 → ((𝑅𝑥) = (𝑅𝑋) → 𝑋 ∈ (mPreSt‘𝑇)))
1918rexlimiv 3266 . . . 4 (∃𝑥𝐽 (𝑅𝑥) = (𝑅𝑋) → 𝑋 ∈ (mPreSt‘𝑇))
2019pm4.71ri 564 . . 3 (∃𝑥𝐽 (𝑅𝑥) = (𝑅𝑋) ↔ (𝑋 ∈ (mPreSt‘𝑇) ∧ ∃𝑥𝐽 (𝑅𝑥) = (𝑅𝑋)))
2115, 20bitr4i 281 . 2 ((𝑋 ∈ (mPreSt‘𝑇) ∧ (𝑅𝑋) ∈ (𝑅𝐽)) ↔ ∃𝑥𝐽 (𝑅𝑥) = (𝑅𝑋))
225, 11, 213bitri 300 1 (𝑋𝑈 ↔ ∃𝑥𝐽 (𝑅𝑥) = (𝑅𝑋))
 Colors of variables: wff setvar class Syntax hints:   ↔ wb 209   ∧ wa 399   = wceq 1538   ∈ wcel 2114  ∃wrex 3131   ⊆ wss 3908  ◡ccnv 5531   “ cima 5535   Fn wfn 6329  ⟶wf 6330  ‘cfv 6334  mPreStcmpst 32794  mStRedcmsr 32795  mPPStcmpps 32799  mThmcmthm 32800 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2116  ax-9 2124  ax-10 2145  ax-11 2161  ax-12 2178  ax-ext 2794  ax-rep 5166  ax-sep 5179  ax-nul 5186  ax-pow 5243  ax-pr 5307  ax-un 7446 This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3an 1086  df-tru 1541  df-fal 1551  df-ex 1782  df-nf 1786  df-sb 2070  df-mo 2622  df-eu 2653  df-clab 2801  df-cleq 2815  df-clel 2894  df-nfc 2962  df-ne 3012  df-ral 3135  df-rex 3136  df-reu 3137  df-rab 3139  df-v 3471  df-sbc 3748  df-csb 3856  df-dif 3911  df-un 3913  df-in 3915  df-ss 3925  df-nul 4266  df-if 4440  df-pw 4513  df-sn 4540  df-pr 4542  df-op 4546  df-ot 4548  df-uni 4814  df-iun 4896  df-br 5043  df-opab 5105  df-mpt 5123  df-id 5437  df-xp 5538  df-rel 5539  df-cnv 5540  df-co 5541  df-dm 5542  df-rn 5543  df-res 5544  df-ima 5545  df-iota 6293  df-fun 6336  df-fn 6337  df-f 6338  df-f1 6339  df-fo 6340  df-f1o 6341  df-fv 6342  df-ov 7143  df-oprab 7144  df-1st 7675  df-2nd 7676  df-mpst 32814  df-msr 32815  df-mpps 32819  df-mthm 32820 This theorem is referenced by:  mthmi  32898  mthmpps  32903
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