Theorem rightval 27824

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 6881	. . . 4 ⊢ (𝑦 = 𝐴 → ( O ‘( bday ‘𝑦)) = ( O ‘( bday ‘𝐴)))
2		breq1 5122	. . . 4 ⊢ (𝑦 = 𝐴 → (𝑦 <s 𝑥 ↔ 𝐴 <s 𝑥))
3	1, 2	rabeqbidv 3434	. . 3 ⊢ (𝑦 = 𝐴 → {𝑥 ∈ ( O ‘( bday ‘𝑦)) ∣ 𝑦 <s 𝑥} = {𝑥 ∈ ( O ‘( bday ‘𝐴)) ∣ 𝐴 <s 𝑥})
4		df-right 27811	. . 3 ⊢ R = (𝑦 ∈ No ↦ {𝑥 ∈ ( O ‘( bday ‘𝑦)) ∣ 𝑦 <s 𝑥})
5		fvex 6889	. . . 4 ⊢ ( O ‘( bday ‘𝐴)) ∈ V
6	5	rabex 5309	. . 3 ⊢ {𝑥 ∈ ( O ‘( bday ‘𝐴)) ∣ 𝐴 <s 𝑥} ∈ V
7	3, 4, 6	fvmpt 6986	. 2 ⊢ (𝐴 ∈ No → ( R ‘𝐴) = {𝑥 ∈ ( O ‘( bday ‘𝐴)) ∣ 𝐴 <s 𝑥})
8	4	fvmptndm 7017	. . 3 ⊢ (¬ 𝐴 ∈ No → ( R ‘𝐴) = ∅)
9		bdaydm 27738	. . . . . . . . 9 ⊢ dom bday = No
10	9	eleq2i 2826	. . . . . . . 8 ⊢ (𝐴 ∈ dom bday ↔ 𝐴 ∈ No )
11		ndmfv 6911	. . . . . . . 8 ⊢ (¬ 𝐴 ∈ dom bday → ( bday ‘𝐴) = ∅)
12	10, 11	sylnbir 331	. . . . . . 7 ⊢ (¬ 𝐴 ∈ No → ( bday ‘𝐴) = ∅)
13	12	fveq2d 6880	. . . . . 6 ⊢ (¬ 𝐴 ∈ No → ( O ‘( bday ‘𝐴)) = ( O ‘∅))
14		old0 27819	. . . . . 6 ⊢ ( O ‘∅) = ∅
15	13, 14	eqtrdi 2786	. . . . 5 ⊢ (¬ 𝐴 ∈ No → ( O ‘( bday ‘𝐴)) = ∅)
16	15	rabeqdv 3431	. . . 4 ⊢ (¬ 𝐴 ∈ No → {𝑥 ∈ ( O ‘( bday ‘𝐴)) ∣ 𝐴 <s 𝑥} = {𝑥 ∈ ∅ ∣ 𝐴 <s 𝑥})
17		rab0 4361	. . . 4 ⊢ {𝑥 ∈ ∅ ∣ 𝐴 <s 𝑥} = ∅
18	16, 17	eqtrdi 2786	. . 3 ⊢ (¬ 𝐴 ∈ No → {𝑥 ∈ ( O ‘( bday ‘𝐴)) ∣ 𝐴 <s 𝑥} = ∅)
19	8, 18	eqtr4d 2773	. 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 1540   ∈ wcel 2108  {crab 3415  ∅c0 4308   class class class wbr 5119  dom cdm 5654  ‘cfv 6531   No csur 27603   <s cslt 27604   bday cbday 27605   O cold 27803   R cright 27806

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2007  ax-8 2110  ax-9 2118  ax-10 2141  ax-11 2157  ax-12 2177  ax-ext 2707  ax-rep 5249  ax-sep 5266  ax-nul 5276  ax-pow 5335  ax-pr 5402  ax-un 7729

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2065  df-mo 2539  df-eu 2568  df-clab 2714  df-cleq 2727  df-clel 2809  df-nfc 2885  df-ne 2933  df-ral 3052  df-rex 3061  df-reu 3360  df-rab 3416  df-v 3461  df-sbc 3766  df-csb 3875  df-dif 3929  df-un 3931  df-in 3933  df-ss 3943  df-pss 3946  df-nul 4309  df-if 4501  df-pw 4577  df-sn 4602  df-pr 4604  df-op 4608  df-uni 4884  df-iun 4969  df-br 5120  df-opab 5182  df-mpt 5202  df-tr 5230  df-id 5548  df-eprel 5553  df-po 5561  df-so 5562  df-fr 5606  df-we 5608  df-xp 5660  df-rel 5661  df-cnv 5662  df-co 5663  df-dm 5664  df-rn 5665  df-res 5666  df-ima 5667  df-pred 6290  df-ord 6355  df-on 6356  df-suc 6358  df-iota 6484  df-fun 6533  df-fn 6534  df-f 6535  df-f1 6536  df-fo 6537  df-f1o 6538  df-fv 6539  df-ov 7408  df-2nd 7989  df-frecs 8280  df-wrecs 8311  df-recs 8385  df-1o 8480  df-no 27606  df-bday 27608  df-made 27807  df-old 27808  df-right 27811

This theorem is referenced by:  elright  27826  ssltright  27835  rightssold  27843  right1s  27859  lrold  27860  madebdaylemlrcut  27862  cofcutr  27884  cofcutrtime  27887  addsproplem2  27929