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Theorem negsproplem2 28043
Description: Lemma for surreal negation. Show that the cut that defines negation is legitimate. (Contributed by Scott Fenton, 2-Feb-2025.)
Hypotheses
Ref Expression
negsproplem.1 (𝜑 → ∀𝑥 No 𝑦 No ((( bday 𝑥) ∪ ( bday 𝑦)) ∈ (( bday 𝐴) ∪ ( bday 𝐵)) → (( -us𝑥) ∈ No ∧ (𝑥 <s 𝑦 → ( -us𝑦) <s ( -us𝑥)))))
negsproplem2.1 (𝜑𝐴 No )
Assertion
Ref Expression
negsproplem2 (𝜑 → ( -us “ ( R ‘𝐴)) <<s ( -us “ ( L ‘𝐴)))
Distinct variable groups:   𝑥,𝐴,𝑦   𝑥,𝐵,𝑦
Allowed substitution hints:   𝜑(𝑥,𝑦)

Proof of Theorem negsproplem2
Dummy variables 𝑎 𝑏 𝑥𝐿 𝑥𝑅 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 negsfn 28037 . . . 4 -us Fn No
2 fnfun 6589 . . . 4 ( -us Fn No → Fun -us )
31, 2ax-mp 5 . . 3 Fun -us
4 fvex 6844 . . . 4 ( R ‘𝐴) ∈ V
54funimaex 6577 . . 3 (Fun -us → ( -us “ ( R ‘𝐴)) ∈ V)
63, 5mp1i 13 . 2 (𝜑 → ( -us “ ( R ‘𝐴)) ∈ V)
7 fvex 6844 . . . 4 ( L ‘𝐴) ∈ V
87funimaex 6577 . . 3 (Fun -us → ( -us “ ( L ‘𝐴)) ∈ V)
93, 8mp1i 13 . 2 (𝜑 → ( -us “ ( L ‘𝐴)) ∈ V)
10 rightssold 27886 . . . 4 ( R ‘𝐴) ⊆ ( O ‘( bday 𝐴))
11 imass2 6061 . . . 4 (( R ‘𝐴) ⊆ ( O ‘( bday 𝐴)) → ( -us “ ( R ‘𝐴)) ⊆ ( -us “ ( O ‘( bday 𝐴))))
1210, 11ax-mp 5 . . 3 ( -us “ ( R ‘𝐴)) ⊆ ( -us “ ( O ‘( bday 𝐴)))
13 negsproplem.1 . . . . . . . 8 (𝜑 → ∀𝑥 No 𝑦 No ((( bday 𝑥) ∪ ( bday 𝑦)) ∈ (( bday 𝐴) ∪ ( bday 𝐵)) → (( -us𝑥) ∈ No ∧ (𝑥 <s 𝑦 → ( -us𝑦) <s ( -us𝑥)))))
1413adantr 482 . . . . . . 7 ((𝜑𝑎 ∈ ( O ‘( bday 𝐴))) → ∀𝑥 No 𝑦 No ((( bday 𝑥) ∪ ( bday 𝑦)) ∈ (( bday 𝐴) ∪ ( bday 𝐵)) → (( -us𝑥) ∈ No ∧ (𝑥 <s 𝑦 → ( -us𝑦) <s ( -us𝑥)))))
15 oldssno 27855 . . . . . . . . 9 ( O ‘( bday 𝐴)) ⊆ No
1615sseli 3913 . . . . . . . 8 (𝑎 ∈ ( O ‘( bday 𝐴)) → 𝑎 No )
1716adantl 483 . . . . . . 7 ((𝜑𝑎 ∈ ( O ‘( bday 𝐴))) → 𝑎 No )
18 0no 27823 . . . . . . . 8 0s No
1918a1i 11 . . . . . . 7 ((𝜑𝑎 ∈ ( O ‘( bday 𝐴))) → 0s No )
20 bday0 27825 . . . . . . . . . 10 ( bday ‘ 0s ) = ∅
2120uneq2i 4098 . . . . . . . . 9 (( bday 𝑎) ∪ ( bday ‘ 0s )) = (( bday 𝑎) ∪ ∅)
22 un0 4325 . . . . . . . . 9 (( bday 𝑎) ∪ ∅) = ( bday 𝑎)
2321, 22eqtri 2764 . . . . . . . 8 (( bday 𝑎) ∪ ( bday ‘ 0s )) = ( bday 𝑎)
24 oldbdayim 27903 . . . . . . . . . 10 (𝑎 ∈ ( O ‘( bday 𝐴)) → ( bday 𝑎) ∈ ( bday 𝐴))
2524adantl 483 . . . . . . . . 9 ((𝜑𝑎 ∈ ( O ‘( bday 𝐴))) → ( bday 𝑎) ∈ ( bday 𝐴))
26 elun1 4114 . . . . . . . . 9 (( bday 𝑎) ∈ ( bday 𝐴) → ( bday 𝑎) ∈ (( bday 𝐴) ∪ ( bday 𝐵)))
2725, 26syl 17 . . . . . . . 8 ((𝜑𝑎 ∈ ( O ‘( bday 𝐴))) → ( bday 𝑎) ∈ (( bday 𝐴) ∪ ( bday 𝐵)))
2823, 27eqeltrid 2845 . . . . . . 7 ((𝜑𝑎 ∈ ( O ‘( bday 𝐴))) → (( bday 𝑎) ∪ ( bday ‘ 0s )) ∈ (( bday 𝐴) ∪ ( bday 𝐵)))
2914, 17, 19, 28negsproplem1 28042 . . . . . 6 ((𝜑𝑎 ∈ ( O ‘( bday 𝐴))) → (( -us𝑎) ∈ No ∧ (𝑎 <s 0s → ( -us ‘ 0s ) <s ( -us𝑎))))
3029simpld 496 . . . . 5 ((𝜑𝑎 ∈ ( O ‘( bday 𝐴))) → ( -us𝑎) ∈ No )
3130ralrimiva 3133 . . . 4 (𝜑 → ∀𝑎 ∈ ( O ‘( bday 𝐴))( -us𝑎) ∈ No )
321fndmi 6593 . . . . . 6 dom -us = No
3315, 32sseqtrri 3966 . . . . 5 ( O ‘( bday 𝐴)) ⊆ dom -us
34 funimass4 6895 . . . . 5 ((Fun -us ∧ ( O ‘( bday 𝐴)) ⊆ dom -us ) → (( -us “ ( O ‘( bday 𝐴))) ⊆ No ↔ ∀𝑎 ∈ ( O ‘( bday 𝐴))( -us𝑎) ∈ No ))
353, 33, 34mp2an 699 . . . 4 (( -us “ ( O ‘( bday 𝐴))) ⊆ No ↔ ∀𝑎 ∈ ( O ‘( bday 𝐴))( -us𝑎) ∈ No )
3631, 35sylibr 236 . . 3 (𝜑 → ( -us “ ( O ‘( bday 𝐴))) ⊆ No )
3712, 36sstrid 3928 . 2 (𝜑 → ( -us “ ( R ‘𝐴)) ⊆ No )
38 leftssold 27885 . . . 4 ( L ‘𝐴) ⊆ ( O ‘( bday 𝐴))
39 imass2 6061 . . . 4 (( L ‘𝐴) ⊆ ( O ‘( bday 𝐴)) → ( -us “ ( L ‘𝐴)) ⊆ ( -us “ ( O ‘( bday 𝐴))))
4038, 39ax-mp 5 . . 3 ( -us “ ( L ‘𝐴)) ⊆ ( -us “ ( O ‘( bday 𝐴)))
4140, 36sstrid 3928 . 2 (𝜑 → ( -us “ ( L ‘𝐴)) ⊆ No )
42 rightssno 27888 . . . . . . 7 ( R ‘𝐴) ⊆ No
43 fvelimab 6903 . . . . . . 7 (( -us Fn No ∧ ( R ‘𝐴) ⊆ No ) → (𝑎 ∈ ( -us “ ( R ‘𝐴)) ↔ ∃𝑥𝑅 ∈ ( R ‘𝐴)( -us𝑥𝑅) = 𝑎))
441, 42, 43mp2an 699 . . . . . 6 (𝑎 ∈ ( -us “ ( R ‘𝐴)) ↔ ∃𝑥𝑅 ∈ ( R ‘𝐴)( -us𝑥𝑅) = 𝑎)
45 leftssno 27887 . . . . . . 7 ( L ‘𝐴) ⊆ No
46 fvelimab 6903 . . . . . . 7 (( -us Fn No ∧ ( L ‘𝐴) ⊆ No ) → (𝑏 ∈ ( -us “ ( L ‘𝐴)) ↔ ∃𝑥𝐿 ∈ ( L ‘𝐴)( -us𝑥𝐿) = 𝑏))
471, 45, 46mp2an 699 . . . . . 6 (𝑏 ∈ ( -us “ ( L ‘𝐴)) ↔ ∃𝑥𝐿 ∈ ( L ‘𝐴)( -us𝑥𝐿) = 𝑏)
4844, 47anbi12i 635 . . . . 5 ((𝑎 ∈ ( -us “ ( R ‘𝐴)) ∧ 𝑏 ∈ ( -us “ ( L ‘𝐴))) ↔ (∃𝑥𝑅 ∈ ( R ‘𝐴)( -us𝑥𝑅) = 𝑎 ∧ ∃𝑥𝐿 ∈ ( L ‘𝐴)( -us𝑥𝐿) = 𝑏))
49 reeanv 3213 . . . . 5 (∃𝑥𝑅 ∈ ( R ‘𝐴)∃𝑥𝐿 ∈ ( L ‘𝐴)(( -us𝑥𝑅) = 𝑎 ∧ ( -us𝑥𝐿) = 𝑏) ↔ (∃𝑥𝑅 ∈ ( R ‘𝐴)( -us𝑥𝑅) = 𝑎 ∧ ∃𝑥𝐿 ∈ ( L ‘𝐴)( -us𝑥𝐿) = 𝑏))
5048, 49bitr4i 280 . . . 4 ((𝑎 ∈ ( -us “ ( R ‘𝐴)) ∧ 𝑏 ∈ ( -us “ ( L ‘𝐴))) ↔ ∃𝑥𝑅 ∈ ( R ‘𝐴)∃𝑥𝐿 ∈ ( L ‘𝐴)(( -us𝑥𝑅) = 𝑎 ∧ ( -us𝑥𝐿) = 𝑏))
51 lltr 27876 . . . . . . . . 9 ( L ‘𝐴) <<s ( R ‘𝐴)
5251a1i 11 . . . . . . . 8 ((𝜑 ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑥𝐿 ∈ ( L ‘𝐴))) → ( L ‘𝐴) <<s ( R ‘𝐴))
53 simprr 779 . . . . . . . 8 ((𝜑 ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑥𝐿 ∈ ( L ‘𝐴))) → 𝑥𝐿 ∈ ( L ‘𝐴))
54 simprl 777 . . . . . . . 8 ((𝜑 ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑥𝐿 ∈ ( L ‘𝐴))) → 𝑥𝑅 ∈ ( R ‘𝐴))
5552, 53, 54sltssepcd 27786 . . . . . . 7 ((𝜑 ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑥𝐿 ∈ ( L ‘𝐴))) → 𝑥𝐿 <s 𝑥𝑅)
5613adantr 482 . . . . . . . . 9 ((𝜑 ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑥𝐿 ∈ ( L ‘𝐴))) → ∀𝑥 No 𝑦 No ((( bday 𝑥) ∪ ( bday 𝑦)) ∈ (( bday 𝐴) ∪ ( bday 𝐵)) → (( -us𝑥) ∈ No ∧ (𝑥 <s 𝑦 → ( -us𝑦) <s ( -us𝑥)))))
5745sseli 3913 . . . . . . . . . 10 (𝑥𝐿 ∈ ( L ‘𝐴) → 𝑥𝐿 No )
5857ad2antll 736 . . . . . . . . 9 ((𝜑 ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑥𝐿 ∈ ( L ‘𝐴))) → 𝑥𝐿 No )
5942sseli 3913 . . . . . . . . . . 11 (𝑥𝑅 ∈ ( R ‘𝐴) → 𝑥𝑅 No )
6059adantr 482 . . . . . . . . . 10 ((𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑥𝐿 ∈ ( L ‘𝐴)) → 𝑥𝑅 No )
6160adantl 483 . . . . . . . . 9 ((𝜑 ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑥𝐿 ∈ ( L ‘𝐴))) → 𝑥𝑅 No )
6238sseli 3913 . . . . . . . . . . . . 13 (𝑥𝐿 ∈ ( L ‘𝐴) → 𝑥𝐿 ∈ ( O ‘( bday 𝐴)))
6362ad2antll 736 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑥𝐿 ∈ ( L ‘𝐴))) → 𝑥𝐿 ∈ ( O ‘( bday 𝐴)))
64 oldbdayim 27903 . . . . . . . . . . . 12 (𝑥𝐿 ∈ ( O ‘( bday 𝐴)) → ( bday 𝑥𝐿) ∈ ( bday 𝐴))
6563, 64syl 17 . . . . . . . . . . 11 ((𝜑 ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑥𝐿 ∈ ( L ‘𝐴))) → ( bday 𝑥𝐿) ∈ ( bday 𝐴))
6610a1i 11 . . . . . . . . . . . . . 14 (𝜑 → ( R ‘𝐴) ⊆ ( O ‘( bday 𝐴)))
6766sselda 3917 . . . . . . . . . . . . 13 ((𝜑𝑥𝑅 ∈ ( R ‘𝐴)) → 𝑥𝑅 ∈ ( O ‘( bday 𝐴)))
6867adantrr 724 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑥𝐿 ∈ ( L ‘𝐴))) → 𝑥𝑅 ∈ ( O ‘( bday 𝐴)))
69 oldbdayim 27903 . . . . . . . . . . . 12 (𝑥𝑅 ∈ ( O ‘( bday 𝐴)) → ( bday 𝑥𝑅) ∈ ( bday 𝐴))
7068, 69syl 17 . . . . . . . . . . 11 ((𝜑 ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑥𝐿 ∈ ( L ‘𝐴))) → ( bday 𝑥𝑅) ∈ ( bday 𝐴))
71 bdayon 27766 . . . . . . . . . . . 12 ( bday 𝑥𝐿) ∈ On
72 bdayon 27766 . . . . . . . . . . . 12 ( bday 𝑥𝑅) ∈ On
73 bdayon 27766 . . . . . . . . . . . 12 ( bday 𝐴) ∈ On
74 onunel 6421 . . . . . . . . . . . 12 ((( bday 𝑥𝐿) ∈ On ∧ ( bday 𝑥𝑅) ∈ On ∧ ( bday 𝐴) ∈ On) → ((( bday 𝑥𝐿) ∪ ( bday 𝑥𝑅)) ∈ ( bday 𝐴) ↔ (( bday 𝑥𝐿) ∈ ( bday 𝐴) ∧ ( bday 𝑥𝑅) ∈ ( bday 𝐴))))
7571, 72, 73, 74mp3an 1470 . . . . . . . . . . 11 ((( bday 𝑥𝐿) ∪ ( bday 𝑥𝑅)) ∈ ( bday 𝐴) ↔ (( bday 𝑥𝐿) ∈ ( bday 𝐴) ∧ ( bday 𝑥𝑅) ∈ ( bday 𝐴)))
7665, 70, 75sylanbrc 590 . . . . . . . . . 10 ((𝜑 ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑥𝐿 ∈ ( L ‘𝐴))) → (( bday 𝑥𝐿) ∪ ( bday 𝑥𝑅)) ∈ ( bday 𝐴))
77 elun1 4114 . . . . . . . . . 10 ((( bday 𝑥𝐿) ∪ ( bday 𝑥𝑅)) ∈ ( bday 𝐴) → (( bday 𝑥𝐿) ∪ ( bday 𝑥𝑅)) ∈ (( bday 𝐴) ∪ ( bday 𝐵)))
7876, 77syl 17 . . . . . . . . 9 ((𝜑 ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑥𝐿 ∈ ( L ‘𝐴))) → (( bday 𝑥𝐿) ∪ ( bday 𝑥𝑅)) ∈ (( bday 𝐴) ∪ ( bday 𝐵)))
7956, 58, 61, 78negsproplem1 28042 . . . . . . . 8 ((𝜑 ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑥𝐿 ∈ ( L ‘𝐴))) → (( -us𝑥𝐿) ∈ No ∧ (𝑥𝐿 <s 𝑥𝑅 → ( -us𝑥𝑅) <s ( -us𝑥𝐿))))
8079simprd 497 . . . . . . 7 ((𝜑 ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑥𝐿 ∈ ( L ‘𝐴))) → (𝑥𝐿 <s 𝑥𝑅 → ( -us𝑥𝑅) <s ( -us𝑥𝐿)))
8155, 80mpd 15 . . . . . 6 ((𝜑 ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑥𝐿 ∈ ( L ‘𝐴))) → ( -us𝑥𝑅) <s ( -us𝑥𝐿))
82 breq12 5080 . . . . . 6 ((( -us𝑥𝑅) = 𝑎 ∧ ( -us𝑥𝐿) = 𝑏) → (( -us𝑥𝑅) <s ( -us𝑥𝐿) ↔ 𝑎 <s 𝑏))
8381, 82syl5ibcom 247 . . . . 5 ((𝜑 ∧ (𝑥𝑅 ∈ ( R ‘𝐴) ∧ 𝑥𝐿 ∈ ( L ‘𝐴))) → ((( -us𝑥𝑅) = 𝑎 ∧ ( -us𝑥𝐿) = 𝑏) → 𝑎 <s 𝑏))
8483rexlimdvva 3198 . . . 4 (𝜑 → (∃𝑥𝑅 ∈ ( R ‘𝐴)∃𝑥𝐿 ∈ ( L ‘𝐴)(( -us𝑥𝑅) = 𝑎 ∧ ( -us𝑥𝐿) = 𝑏) → 𝑎 <s 𝑏))
8550, 84biimtrid 244 . . 3 (𝜑 → ((𝑎 ∈ ( -us “ ( R ‘𝐴)) ∧ 𝑏 ∈ ( -us “ ( L ‘𝐴))) → 𝑎 <s 𝑏))
86853impib 1123 . 2 ((𝜑𝑎 ∈ ( -us “ ( R ‘𝐴)) ∧ 𝑏 ∈ ( -us “ ( L ‘𝐴))) → 𝑎 <s 𝑏)
876, 9, 37, 41, 86sltsd 27782 1 (𝜑 → ( -us “ ( R ‘𝐴)) <<s ( -us “ ( L ‘𝐴)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 208  wa 397   = wceq 1548  wcel 2121  wral 3055  wrex 3065  Vcvv 3433  cun 3883  wss 3885  c0 4264   class class class wbr 5075  dom cdm 5621  cima 5624  Oncon0 6314  Fun wfun 6483   Fn wfn 6484  cfv 6489   No csur 27625   <s clts 27626   bday cbday 27627   <<s cslts 27771   0s c0s 27819   O cold 27837   L cleft 27839   R cright 27840   -us cnegs 28033
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1803  ax-4 1817  ax-5 1918  ax-6 1975  ax-7 2016  ax-8 2123  ax-9 2131  ax-10 2154  ax-11 2170  ax-12 2191  ax-ext 2713  ax-rep 5202  ax-sep 5221  ax-nul 5231  ax-pow 5297  ax-pr 5365  ax-un 7682
This theorem depends on definitions:  df-bi 209  df-an 398  df-or 855  df-3or 1094  df-3an 1095  df-tru 1551  df-fal 1561  df-ex 1788  df-nf 1792  df-sb 2075  df-mo 2545  df-eu 2575  df-clab 2720  df-cleq 2733  df-clel 2816  df-nfc 2890  df-ne 2937  df-ral 3056  df-rex 3066  df-rmo 3346  df-reu 3347  df-rab 3394  df-v 3435  df-sbc 3726  df-csb 3834  df-dif 3888  df-un 3890  df-in 3892  df-ss 3902  df-pss 3905  df-nul 4265  df-if 4458  df-pw 4534  df-sn 4559  df-pr 4561  df-tp 4563  df-op 4565  df-uni 4842  df-int 4881  df-iun 4926  df-br 5076  df-opab 5138  df-mpt 5157  df-tr 5183  df-id 5516  df-eprel 5521  df-po 5529  df-so 5530  df-fr 5574  df-se 5575  df-we 5576  df-xp 5627  df-rel 5628  df-cnv 5629  df-co 5630  df-dm 5631  df-rn 5632  df-res 5633  df-ima 5634  df-pred 6256  df-ord 6317  df-on 6318  df-suc 6320  df-iota 6445  df-fun 6491  df-fn 6492  df-f 6493  df-f1 6494  df-fo 6495  df-f1o 6496  df-fv 6497  df-riota 7317  df-ov 7363  df-oprab 7364  df-mpo 7365  df-2nd 7936  df-frecs 8225  df-wrecs 8256  df-recs 8305  df-1o 8399  df-2o 8400  df-no 27628  df-lts 27629  df-bday 27630  df-slts 27772  df-cuts 27774  df-0s 27821  df-made 27841  df-old 27842  df-left 27844  df-right 27845  df-norec 27952  df-negs 28035
This theorem is referenced by:  negsproplem3  28044
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