Users' Mathboxes Mathbox for Richard Penner < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >   Mathboxes  >  frege97d Structured version   Visualization version   GIF version

Theorem frege97d 43741
Description: If 𝐴 contains all elements after those in 𝑈 in the transitive closure of 𝑅, then the image under 𝑅 of 𝐴 is a subclass of 𝐴. Similar to Proposition 97 of [Frege1879] p. 71. Compare with frege97 43949. (Contributed by RP, 15-Jul-2020.)
Hypotheses
Ref Expression
frege97d.r (𝜑𝑅 ∈ V)
frege97d.a (𝜑𝐴 = ((t+‘𝑅) “ 𝑈))
Assertion
Ref Expression
frege97d (𝜑 → (𝑅𝐴) ⊆ 𝐴)

Proof of Theorem frege97d
StepHypRef Expression
1 frege97d.r . . . . 5 (𝜑𝑅 ∈ V)
2 trclfvlb 15043 . . . . 5 (𝑅 ∈ V → 𝑅 ⊆ (t+‘𝑅))
3 coss1 5868 . . . . 5 (𝑅 ⊆ (t+‘𝑅) → (𝑅 ∘ (t+‘𝑅)) ⊆ ((t+‘𝑅) ∘ (t+‘𝑅)))
41, 2, 33syl 18 . . . 4 (𝜑 → (𝑅 ∘ (t+‘𝑅)) ⊆ ((t+‘𝑅) ∘ (t+‘𝑅)))
5 trclfvcotrg 15051 . . . 4 ((t+‘𝑅) ∘ (t+‘𝑅)) ⊆ (t+‘𝑅)
64, 5sstrdi 4007 . . 3 (𝜑 → (𝑅 ∘ (t+‘𝑅)) ⊆ (t+‘𝑅))
7 imass1 6121 . . 3 ((𝑅 ∘ (t+‘𝑅)) ⊆ (t+‘𝑅) → ((𝑅 ∘ (t+‘𝑅)) “ 𝑈) ⊆ ((t+‘𝑅) “ 𝑈))
86, 7syl 17 . 2 (𝜑 → ((𝑅 ∘ (t+‘𝑅)) “ 𝑈) ⊆ ((t+‘𝑅) “ 𝑈))
9 frege97d.a . . . 4 (𝜑𝐴 = ((t+‘𝑅) “ 𝑈))
109imaeq2d 6079 . . 3 (𝜑 → (𝑅𝐴) = (𝑅 “ ((t+‘𝑅) “ 𝑈)))
11 imaco 6272 . . 3 ((𝑅 ∘ (t+‘𝑅)) “ 𝑈) = (𝑅 “ ((t+‘𝑅) “ 𝑈))
1210, 11eqtr4di 2792 . 2 (𝜑 → (𝑅𝐴) = ((𝑅 ∘ (t+‘𝑅)) “ 𝑈))
138, 12, 93sstr4d 4042 1 (𝜑 → (𝑅𝐴) ⊆ 𝐴)
Colors of variables: wff setvar class
Syntax hints:  wi 4   = wceq 1536  wcel 2105  Vcvv 3477  wss 3962  cima 5691  ccom 5692  cfv 6562  t+ctcl 15020
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1791  ax-4 1805  ax-5 1907  ax-6 1964  ax-7 2004  ax-8 2107  ax-9 2115  ax-10 2138  ax-11 2154  ax-12 2174  ax-ext 2705  ax-sep 5301  ax-nul 5311  ax-pow 5370  ax-pr 5437  ax-un 7753
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1539  df-fal 1549  df-ex 1776  df-nf 1780  df-sb 2062  df-mo 2537  df-eu 2566  df-clab 2712  df-cleq 2726  df-clel 2813  df-nfc 2889  df-ne 2938  df-ral 3059  df-rex 3068  df-rab 3433  df-v 3479  df-dif 3965  df-un 3967  df-in 3969  df-ss 3979  df-nul 4339  df-if 4531  df-pw 4606  df-sn 4631  df-pr 4633  df-op 4637  df-uni 4912  df-int 4951  df-br 5148  df-opab 5210  df-mpt 5231  df-id 5582  df-xp 5694  df-rel 5695  df-cnv 5696  df-co 5697  df-dm 5698  df-rn 5699  df-res 5700  df-ima 5701  df-iota 6515  df-fun 6564  df-fv 6570  df-trcl 15022
This theorem is referenced by: (None)
  Copyright terms: Public domain W3C validator