Theorem rightf 34037

Description: The functionality of the right options function. (Contributed by Scott Fenton, 6-Aug-2024.)

Assertion

Ref	Expression
rightf	⊢ R : No ⟶𝒫 No

Proof of Theorem rightf

Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		df-right 34022	. 2 ⊢ R = (𝑥 ∈ No ↦ {𝑦 ∈ ( O ‘( bday ‘𝑥)) ∣ 𝑥 <s 𝑦})
2		bdayelon 33958	. . . . . . . 8 ⊢ ( bday ‘𝑥) ∈ On
3		oldf 34028	. . . . . . . . 9 ⊢ O :On⟶𝒫 No
4	3	ffvelrni 6954	. . . . . . . 8 ⊢ (( bday ‘𝑥) ∈ On → ( O ‘( bday ‘𝑥)) ∈ 𝒫 No )
5	2, 4	mp1i 13	. . . . . . 7 ⊢ (𝑥 ∈ No → ( O ‘( bday ‘𝑥)) ∈ 𝒫 No )
6	5	elpwid 4546	. . . . . 6 ⊢ (𝑥 ∈ No → ( O ‘( bday ‘𝑥)) ⊆ No )
7	6	sselda 3922	. . . . 5 ⊢ ((𝑥 ∈ No ∧ 𝑦 ∈ ( O ‘( bday ‘𝑥))) → 𝑦 ∈ No )
8	7	a1d 25	. . . 4 ⊢ ((𝑥 ∈ No ∧ 𝑦 ∈ ( O ‘( bday ‘𝑥))) → (𝑥 <s 𝑦 → 𝑦 ∈ No ))
9	8	ralrimiva 3103	. . 3 ⊢ (𝑥 ∈ No → ∀𝑦 ∈ ( O ‘( bday ‘𝑥))(𝑥 <s 𝑦 → 𝑦 ∈ No ))
10		fvex 6781	. . . . . 6 ⊢ ( O ‘( bday ‘𝑥)) ∈ V
11	10	rabex 5256	. . . . 5 ⊢ {𝑦 ∈ ( O ‘( bday ‘𝑥)) ∣ 𝑥 <s 𝑦} ∈ V
12	11	elpw 4539	. . . 4 ⊢ ({𝑦 ∈ ( O ‘( bday ‘𝑥)) ∣ 𝑥 <s 𝑦} ∈ 𝒫 No ↔ {𝑦 ∈ ( O ‘( bday ‘𝑥)) ∣ 𝑥 <s 𝑦} ⊆ No )
13		rabss 4006	. . . 4 ⊢ ({𝑦 ∈ ( O ‘( bday ‘𝑥)) ∣ 𝑥 <s 𝑦} ⊆ No ↔ ∀𝑦 ∈ ( O ‘( bday ‘𝑥))(𝑥 <s 𝑦 → 𝑦 ∈ No ))
14	12, 13	bitri 274	. . 3 ⊢ ({𝑦 ∈ ( O ‘( bday ‘𝑥)) ∣ 𝑥 <s 𝑦} ∈ 𝒫 No ↔ ∀𝑦 ∈ ( O ‘( bday ‘𝑥))(𝑥 <s 𝑦 → 𝑦 ∈ No ))
15	9, 14	sylibr 233	. 2 ⊢ (𝑥 ∈ No → {𝑦 ∈ ( O ‘( bday ‘𝑥)) ∣ 𝑥 <s 𝑦} ∈ 𝒫 No )
16	1, 15	fmpti 6980	1 ⊢ R : No ⟶𝒫 No

Syntax hints:   → wi 4   ∧ wa 396   ∈ wcel 2106  ∀wral 3064  {crab 3068   ⊆ wss 3888  𝒫 cpw 4535   class class class wbr 5075  Oncon0 6261  ⟶wf 6424  ‘cfv 6428   No csur 33830   <s cslt 33831   bday cbday 33832   O cold 34014   R cright 34017

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  ax-5 1913  ax-6 1971  ax-7 2011  ax-8 2108  ax-9 2116  ax-10 2137  ax-11 2154  ax-12 2171  ax-ext 2709  ax-rep 5210  ax-sep 5223  ax-nul 5230  ax-pow 5288  ax-pr 5352  ax-un 7580

This theorem depends on definitions:  df-bi 206  df-an 397  df-or 845  df-3or 1087  df-3an 1088  df-tru 1542  df-fal 1552  df-ex 1783  df-nf 1787  df-sb 2068  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2816  df-nfc 2889  df-ne 2944  df-ral 3069  df-rex 3070  df-rmo 3071  df-reu 3072  df-rab 3073  df-v 3433  df-sbc 3718  df-csb 3834  df-dif 3891  df-un 3893  df-in 3895  df-ss 3905  df-pss 3907  df-nul 4259  df-if 4462  df-pw 4537  df-sn 4564  df-pr 4566  df-tp 4568  df-op 4570  df-uni 4842  df-int 4882  df-iun 4928  df-br 5076  df-opab 5138  df-mpt 5159  df-tr 5193  df-id 5486  df-eprel 5492  df-po 5500  df-so 5501  df-fr 5541  df-we 5543  df-xp 5592  df-rel 5593  df-cnv 5594  df-co 5595  df-dm 5596  df-rn 5597  df-res 5598  df-ima 5599  df-pred 6197  df-ord 6264  df-on 6265  df-suc 6267  df-iota 6386  df-fun 6430  df-fn 6431  df-f 6432  df-f1 6433  df-fo 6434  df-f1o 6435  df-fv 6436  df-riota 7226  df-ov 7272  df-oprab 7273  df-mpo 7274  df-2nd 7823  df-frecs 8086  df-wrecs 8117  df-recs 8191  df-1o 8286  df-2o 8287  df-no 33833  df-slt 33834  df-bday 33835  df-sslt 33963  df-scut 33965  df-made 34018  df-old 34019  df-right 34022

This theorem is referenced by:  ssltright  34042  lrold  34064