Theorem rightval 27803

Description: The value of the right options function. (Contributed by Scott Fenton, 9-Oct-2024.)

Assertion

Ref	Expression
rightval	⊢ ( R ‘𝐴) = {𝑥 ∈ ( O ‘( bday ‘𝐴)) ∣ 𝐴 <s 𝑥}

Distinct variable group:   𝑥,𝐴

Proof of Theorem rightval

Dummy variable 𝑦 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		2fveq3 6827	. . . 4 ⊢ (𝑦 = 𝐴 → ( O ‘( bday ‘𝑦)) = ( O ‘( bday ‘𝐴)))
2		breq1 5094	. . . 4 ⊢ (𝑦 = 𝐴 → (𝑦 <s 𝑥 ↔ 𝐴 <s 𝑥))
3	1, 2	rabeqbidv 3413	. . 3 ⊢ (𝑦 = 𝐴 → {𝑥 ∈ ( O ‘( bday ‘𝑦)) ∣ 𝑦 <s 𝑥} = {𝑥 ∈ ( O ‘( bday ‘𝐴)) ∣ 𝐴 <s 𝑥})
4		df-right 27790	. . 3 ⊢ R = (𝑦 ∈ No ↦ {𝑥 ∈ ( O ‘( bday ‘𝑦)) ∣ 𝑦 <s 𝑥})
5		fvex 6835	. . . 4 ⊢ ( O ‘( bday ‘𝐴)) ∈ V
6	5	rabex 5277	. . 3 ⊢ {𝑥 ∈ ( O ‘( bday ‘𝐴)) ∣ 𝐴 <s 𝑥} ∈ V
7	3, 4, 6	fvmpt 6929	. 2 ⊢ (𝐴 ∈ No → ( R ‘𝐴) = {𝑥 ∈ ( O ‘( bday ‘𝐴)) ∣ 𝐴 <s 𝑥})
8	4	fvmptndm 6960	. . 3 ⊢ (¬ 𝐴 ∈ No → ( R ‘𝐴) = ∅)
9		bdaydm 27711	. . . . . . . . 9 ⊢ dom bday = No
10	9	eleq2i 2823	. . . . . . . 8 ⊢ (𝐴 ∈ dom bday ↔ 𝐴 ∈ No )
11		ndmfv 6854	. . . . . . . 8 ⊢ (¬ 𝐴 ∈ dom bday → ( bday ‘𝐴) = ∅)
12	10, 11	sylnbir 331	. . . . . . 7 ⊢ (¬ 𝐴 ∈ No → ( bday ‘𝐴) = ∅)
13	12	fveq2d 6826	. . . . . 6 ⊢ (¬ 𝐴 ∈ No → ( O ‘( bday ‘𝐴)) = ( O ‘∅))
14		old0 27798	. . . . . 6 ⊢ ( O ‘∅) = ∅
15	13, 14	eqtrdi 2782	. . . . 5 ⊢ (¬ 𝐴 ∈ No → ( O ‘( bday ‘𝐴)) = ∅)
16	15	rabeqdv 3410	. . . 4 ⊢ (¬ 𝐴 ∈ No → {𝑥 ∈ ( O ‘( bday ‘𝐴)) ∣ 𝐴 <s 𝑥} = {𝑥 ∈ ∅ ∣ 𝐴 <s 𝑥})
17		rab0 4336	. . . 4 ⊢ {𝑥 ∈ ∅ ∣ 𝐴 <s 𝑥} = ∅
18	16, 17	eqtrdi 2782	. . 3 ⊢ (¬ 𝐴 ∈ No → {𝑥 ∈ ( O ‘( bday ‘𝐴)) ∣ 𝐴 <s 𝑥} = ∅)
19	8, 18	eqtr4d 2769	. 2 ⊢ (¬ 𝐴 ∈ No → ( R ‘𝐴) = {𝑥 ∈ ( O ‘( bday ‘𝐴)) ∣ 𝐴 <s 𝑥})
20	7, 19	pm2.61i 182	1 ⊢ ( R ‘𝐴) = {𝑥 ∈ ( O ‘( bday ‘𝐴)) ∣ 𝐴 <s 𝑥}

Syntax hints:  ¬ wn 3   = wceq 1541   ∈ wcel 2111  {crab 3395  ∅c0 4283   class class class wbr 5091  dom cdm 5616  ‘cfv 6481   No csur 27576   <s cslt 27577   bday cbday 27578   O cold 27782   R cright 27785

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1968  ax-7 2009  ax-8 2113  ax-9 2121  ax-10 2144  ax-11 2160  ax-12 2180  ax-ext 2703  ax-rep 5217  ax-sep 5234  ax-nul 5244  ax-pow 5303  ax-pr 5370  ax-un 7668

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-nf 1785  df-sb 2068  df-mo 2535  df-eu 2564  df-clab 2710  df-cleq 2723  df-clel 2806  df-nfc 2881  df-ne 2929  df-ral 3048  df-rex 3057  df-reu 3347  df-rab 3396  df-v 3438  df-sbc 3742  df-csb 3851  df-dif 3905  df-un 3907  df-in 3909  df-ss 3919  df-pss 3922  df-nul 4284  df-if 4476  df-pw 4552  df-sn 4577  df-pr 4579  df-op 4583  df-uni 4860  df-iun 4943  df-br 5092  df-opab 5154  df-mpt 5173  df-tr 5199  df-id 5511  df-eprel 5516  df-po 5524  df-so 5525  df-fr 5569  df-we 5571  df-xp 5622  df-rel 5623  df-cnv 5624  df-co 5625  df-dm 5626  df-rn 5627  df-res 5628  df-ima 5629  df-pred 6248  df-ord 6309  df-on 6310  df-suc 6312  df-iota 6437  df-fun 6483  df-fn 6484  df-f 6485  df-f1 6486  df-fo 6487  df-f1o 6488  df-fv 6489  df-ov 7349  df-2nd 7922  df-frecs 8211  df-wrecs 8242  df-recs 8291  df-1o 8385  df-no 27579  df-bday 27581  df-made 27786  df-old 27787  df-right 27790

This theorem is referenced by:  elright  27805  ssltright  27814  rightssold  27823  right1s  27839  lrold  27840  madebdaylemlrcut  27842  cofcutr  27866  cofcutrtime  27869  addsproplem2  27911