Users' Mathboxes Mathbox for Scott Fenton < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >   Mathboxes  >  oldssmade Structured version   Visualization version   GIF version

Theorem oldssmade 33651
Description: The older-than set is a subset of the made set. (Contributed by Scott Fenton, 7-Aug-2024.)
Assertion
Ref Expression
oldssmade (𝐴 ∈ On → ( O ‘𝐴) ⊆ ( M ‘𝐴))

Proof of Theorem oldssmade
Dummy variables 𝑥 𝑏 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 elold 33643 . . 3 (𝐴 ∈ On → (𝑥 ∈ ( O ‘𝐴) ↔ ∃𝑏𝐴 𝑥 ∈ ( M ‘𝑏)))
2 onelon 6199 . . . . . 6 ((𝐴 ∈ On ∧ 𝑏𝐴) → 𝑏 ∈ On)
3 simpl 486 . . . . . 6 ((𝐴 ∈ On ∧ 𝑏𝐴) → 𝐴 ∈ On)
4 onelss 6216 . . . . . . 7 (𝐴 ∈ On → (𝑏𝐴𝑏𝐴))
54imp 410 . . . . . 6 ((𝐴 ∈ On ∧ 𝑏𝐴) → 𝑏𝐴)
6 madess 33650 . . . . . 6 ((𝑏 ∈ On ∧ 𝐴 ∈ On ∧ 𝑏𝐴) → ( M ‘𝑏) ⊆ ( M ‘𝐴))
72, 3, 5, 6syl3anc 1368 . . . . 5 ((𝐴 ∈ On ∧ 𝑏𝐴) → ( M ‘𝑏) ⊆ ( M ‘𝐴))
87sseld 3893 . . . 4 ((𝐴 ∈ On ∧ 𝑏𝐴) → (𝑥 ∈ ( M ‘𝑏) → 𝑥 ∈ ( M ‘𝐴)))
98rexlimdva 3208 . . 3 (𝐴 ∈ On → (∃𝑏𝐴 𝑥 ∈ ( M ‘𝑏) → 𝑥 ∈ ( M ‘𝐴)))
101, 9sylbid 243 . 2 (𝐴 ∈ On → (𝑥 ∈ ( O ‘𝐴) → 𝑥 ∈ ( M ‘𝐴)))
1110ssrdv 3900 1 (𝐴 ∈ On → ( O ‘𝐴) ⊆ ( M ‘𝐴))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 399  wcel 2111  wrex 3071  wss 3860  Oncon0 6174  cfv 6340   M cmade 33620   O cold 33621
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 2113  ax-9 2121  ax-10 2142  ax-11 2158  ax-12 2175  ax-ext 2729  ax-rep 5160  ax-sep 5173  ax-nul 5180  ax-pow 5238  ax-pr 5302  ax-un 7465
This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3or 1085  df-3an 1086  df-tru 1541  df-fal 1551  df-ex 1782  df-nf 1786  df-sb 2070  df-mo 2557  df-eu 2588  df-clab 2736  df-cleq 2750  df-clel 2830  df-nfc 2901  df-ne 2952  df-ral 3075  df-rex 3076  df-reu 3077  df-rmo 3078  df-rab 3079  df-v 3411  df-sbc 3699  df-csb 3808  df-dif 3863  df-un 3865  df-in 3867  df-ss 3877  df-pss 3879  df-nul 4228  df-if 4424  df-pw 4499  df-sn 4526  df-pr 4528  df-tp 4530  df-op 4532  df-uni 4802  df-int 4842  df-iun 4888  df-br 5037  df-opab 5099  df-mpt 5117  df-tr 5143  df-id 5434  df-eprel 5439  df-po 5447  df-so 5448  df-fr 5487  df-we 5489  df-xp 5534  df-rel 5535  df-cnv 5536  df-co 5537  df-dm 5538  df-rn 5539  df-res 5540  df-ima 5541  df-pred 6131  df-ord 6177  df-on 6178  df-suc 6180  df-iota 6299  df-fun 6342  df-fn 6343  df-f 6344  df-f1 6345  df-fo 6346  df-f1o 6347  df-fv 6348  df-riota 7114  df-ov 7159  df-oprab 7160  df-mpo 7161  df-wrecs 7963  df-recs 8024  df-1o 8118  df-2o 8119  df-no 33443  df-slt 33444  df-bday 33445  df-sslt 33573  df-scut 33575  df-made 33625  df-old 33626
This theorem is referenced by:  madeun  33657  madeoldsuc  33658  oldlim  33660
  Copyright terms: Public domain W3C validator