metakunt31 - Mathbox for metakunt

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Theorem metakunt31 39877

Description: Construction of one solution of the increment equation system. (Contributed by metakunt, 18-Jul-2024.)

**Hypotheses**
Ref	Expression
metakunt31.1	⊢ (𝜑 → 𝑀 ∈ ℕ)
metakunt31.2	⊢ (𝜑 → 𝐼 ∈ ℕ)
metakunt31.3	⊢ (𝜑 → 𝐼 ≤ 𝑀)
metakunt31.4	⊢ (𝜑 → 𝑋 ∈ (1...𝑀))
metakunt31.5	⊢ 𝐴 = (𝑥 ∈ (1...𝑀) ↦ if(𝑥 = 𝐼, 𝑀, if(𝑥 < 𝐼, 𝑥, (𝑥 − 1))))
metakunt31.6	⊢ 𝐵 = (𝑧 ∈ (1...𝑀) ↦ if(𝑧 = 𝑀, 𝑀, if(𝑧 < 𝐼, (𝑧 + (𝑀 − 𝐼)), (𝑧 + (1 − 𝐼)))))
metakunt31.7	⊢ 𝐶 = (𝑦 ∈ (1...𝑀) ↦ if(𝑦 = 𝑀, 𝐼, if(𝑦 < 𝐼, 𝑦, (𝑦 + 1))))
metakunt31.8	⊢ 𝐺 = if(𝐼 ≤ (𝑋 + (𝑀 − 𝐼)), 1, 0)
metakunt31.9	⊢ 𝐻 = if(𝐼 ≤ (𝑋 − 𝐼), 1, 0)
metakunt31.10	⊢ 𝑅 = if(𝑋 = 𝐼, 𝑋, if(𝑋 < 𝐼, ((𝑋 + (𝑀 − 𝐼)) + 𝐺), ((𝑋 − 𝐼) + 𝐻)))

**Assertion**
Ref	Expression
metakunt31	⊢ (𝜑 → (𝐶‘(𝐵‘(𝐴‘𝑋))) = 𝑅)

Distinct variable groups: 𝑦,𝐺 𝑦,𝐻 𝑥,𝐼 𝑦,𝐼 𝑧,𝐼 𝑥,𝑀 𝑦,𝑀 𝑧,𝑀 𝑥,𝑋 𝑦,𝑋 𝑧,𝑋 𝜑,𝑥 𝜑,𝑦 𝜑,𝑧 Allowed substitution hints: 𝐴(𝑥,𝑦,𝑧) 𝐵(𝑥,𝑦,𝑧) 𝐶(𝑥,𝑦,𝑧) 𝑅(𝑥,𝑦,𝑧) 𝐺(𝑥,𝑧) 𝐻(𝑥,𝑧)

**Proof of Theorem metakunt31**
Step	Hyp	Ref	Expression
1		metakunt31.1	. . . . . 6 ⊢ (𝜑 → 𝑀 ∈ ℕ)
2	1	adantr 484	. . . . 5 ⊢ ((𝜑 ∧ 𝑋 = 𝐼) → 𝑀 ∈ ℕ)
3		metakunt31.2	. . . . . 6 ⊢ (𝜑 → 𝐼 ∈ ℕ)
4	3	adantr 484	. . . . 5 ⊢ ((𝜑 ∧ 𝑋 = 𝐼) → 𝐼 ∈ ℕ)
5		metakunt31.3	. . . . . 6 ⊢ (𝜑 → 𝐼 ≤ 𝑀)
6	5	adantr 484	. . . . 5 ⊢ ((𝜑 ∧ 𝑋 = 𝐼) → 𝐼 ≤ 𝑀)
7		metakunt31.5	. . . . 5 ⊢ 𝐴 = (𝑥 ∈ (1...𝑀) ↦ if(𝑥 = 𝐼, 𝑀, if(𝑥 < 𝐼, 𝑥, (𝑥 − 1))))
8		metakunt31.7	. . . . 5 ⊢ 𝐶 = (𝑦 ∈ (1...𝑀) ↦ if(𝑦 = 𝑀, 𝐼, if(𝑦 < 𝐼, 𝑦, (𝑦 + 1))))
9		metakunt31.6	. . . . 5 ⊢ 𝐵 = (𝑧 ∈ (1...𝑀) ↦ if(𝑧 = 𝑀, 𝑀, if(𝑧 < 𝐼, (𝑧 + (𝑀 − 𝐼)), (𝑧 + (1 − 𝐼)))))
10		simpr 488	. . . . 5 ⊢ ((𝜑 ∧ 𝑋 = 𝐼) → 𝑋 = 𝐼)
11	2, 4, 6, 7, 8, 9, 10	metakunt26 39872	. . . 4 ⊢ ((𝜑 ∧ 𝑋 = 𝐼) → (𝐶‘(𝐵‘(𝐴‘𝑋))) = 𝑋)
12	10	iftrued 4447	. . . . 5 ⊢ ((𝜑 ∧ 𝑋 = 𝐼) → if(𝑋 = 𝐼, 𝑋, if(𝑋 < 𝐼, ((𝑋 + (𝑀 − 𝐼)) + 𝐺), ((𝑋 − 𝐼) + 𝐻))) = 𝑋)
13	12	eqcomd 2743	. . . 4 ⊢ ((𝜑 ∧ 𝑋 = 𝐼) → 𝑋 = if(𝑋 = 𝐼, 𝑋, if(𝑋 < 𝐼, ((𝑋 + (𝑀 − 𝐼)) + 𝐺), ((𝑋 − 𝐼) + 𝐻))))
14	11, 13	eqtrd 2777	. . 3 ⊢ ((𝜑 ∧ 𝑋 = 𝐼) → (𝐶‘(𝐵‘(𝐴‘𝑋))) = if(𝑋 = 𝐼, 𝑋, if(𝑋 < 𝐼, ((𝑋 + (𝑀 − 𝐼)) + 𝐺), ((𝑋 − 𝐼) + 𝐻))))
15		metakunt31.10	. . . . 5 ⊢ 𝑅 = if(𝑋 = 𝐼, 𝑋, if(𝑋 < 𝐼, ((𝑋 + (𝑀 − 𝐼)) + 𝐺), ((𝑋 − 𝐼) + 𝐻)))
16	15	eqcomi 2746	. . . 4 ⊢ if(𝑋 = 𝐼, 𝑋, if(𝑋 < 𝐼, ((𝑋 + (𝑀 − 𝐼)) + 𝐺), ((𝑋 − 𝐼) + 𝐻))) = 𝑅
17	16	a1i 11	. . 3 ⊢ ((𝜑 ∧ 𝑋 = 𝐼) → if(𝑋 = 𝐼, 𝑋, if(𝑋 < 𝐼, ((𝑋 + (𝑀 − 𝐼)) + 𝐺), ((𝑋 − 𝐼) + 𝐻))) = 𝑅)
18	14, 17	eqtrd 2777	. 2 ⊢ ((𝜑 ∧ 𝑋 = 𝐼) → (𝐶‘(𝐵‘(𝐴‘𝑋))) = 𝑅)
19	1	3ad2ant1 1135	. . . . . . 7 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ 𝑋 < 𝐼) → 𝑀 ∈ ℕ)
20	3	3ad2ant1 1135	. . . . . . 7 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ 𝑋 < 𝐼) → 𝐼 ∈ ℕ)
21	5	3ad2ant1 1135	. . . . . . 7 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ 𝑋 < 𝐼) → 𝐼 ≤ 𝑀)
22		metakunt31.4	. . . . . . . 8 ⊢ (𝜑 → 𝑋 ∈ (1...𝑀))
23	22	3ad2ant1 1135	. . . . . . 7 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ 𝑋 < 𝐼) → 𝑋 ∈ (1...𝑀))
24		simp2 1139	. . . . . . 7 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ 𝑋 < 𝐼) → ¬ 𝑋 = 𝐼)
25		simp3 1140	. . . . . . 7 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ 𝑋 < 𝐼) → 𝑋 < 𝐼)
26		metakunt31.8	. . . . . . 7 ⊢ 𝐺 = if(𝐼 ≤ (𝑋 + (𝑀 − 𝐼)), 1, 0)
27	19, 20, 21, 23, 7, 9, 24, 25, 8, 26	metakunt29 39875	. . . . . 6 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ 𝑋 < 𝐼) → (𝐶‘(𝐵‘(𝐴‘𝑋))) = ((𝑋 + (𝑀 − 𝐼)) + 𝐺))
28	24	iffalsed 4450	. . . . . . . 8 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ 𝑋 < 𝐼) → if(𝑋 = 𝐼, 𝑋, if(𝑋 < 𝐼, ((𝑋 + (𝑀 − 𝐼)) + 𝐺), ((𝑋 − 𝐼) + 𝐻))) = if(𝑋 < 𝐼, ((𝑋 + (𝑀 − 𝐼)) + 𝐺), ((𝑋 − 𝐼) + 𝐻)))
29	25	iftrued 4447	. . . . . . . 8 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ 𝑋 < 𝐼) → if(𝑋 < 𝐼, ((𝑋 + (𝑀 − 𝐼)) + 𝐺), ((𝑋 − 𝐼) + 𝐻)) = ((𝑋 + (𝑀 − 𝐼)) + 𝐺))
30	28, 29	eqtrd 2777	. . . . . . 7 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ 𝑋 < 𝐼) → if(𝑋 = 𝐼, 𝑋, if(𝑋 < 𝐼, ((𝑋 + (𝑀 − 𝐼)) + 𝐺), ((𝑋 − 𝐼) + 𝐻))) = ((𝑋 + (𝑀 − 𝐼)) + 𝐺))
31	30	eqcomd 2743	. . . . . 6 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ 𝑋 < 𝐼) → ((𝑋 + (𝑀 − 𝐼)) + 𝐺) = if(𝑋 = 𝐼, 𝑋, if(𝑋 < 𝐼, ((𝑋 + (𝑀 − 𝐼)) + 𝐺), ((𝑋 − 𝐼) + 𝐻))))
32	27, 31	eqtrd 2777	. . . . 5 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ 𝑋 < 𝐼) → (𝐶‘(𝐵‘(𝐴‘𝑋))) = if(𝑋 = 𝐼, 𝑋, if(𝑋 < 𝐼, ((𝑋 + (𝑀 − 𝐼)) + 𝐺), ((𝑋 − 𝐼) + 𝐻))))
33	16	a1i 11	. . . . 5 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ 𝑋 < 𝐼) → if(𝑋 = 𝐼, 𝑋, if(𝑋 < 𝐼, ((𝑋 + (𝑀 − 𝐼)) + 𝐺), ((𝑋 − 𝐼) + 𝐻))) = 𝑅)
34	32, 33	eqtrd 2777	. . . 4 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ 𝑋 < 𝐼) → (𝐶‘(𝐵‘(𝐴‘𝑋))) = 𝑅)
35	34	3expa 1120	. . 3 ⊢ (((𝜑 ∧ ¬ 𝑋 = 𝐼) ∧ 𝑋 < 𝐼) → (𝐶‘(𝐵‘(𝐴‘𝑋))) = 𝑅)
36	1	3ad2ant1 1135	. . . . . . 7 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ ¬ 𝑋 < 𝐼) → 𝑀 ∈ ℕ)
37	3	3ad2ant1 1135	. . . . . . 7 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ ¬ 𝑋 < 𝐼) → 𝐼 ∈ ℕ)
38	5	3ad2ant1 1135	. . . . . . 7 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ ¬ 𝑋 < 𝐼) → 𝐼 ≤ 𝑀)
39	22	3ad2ant1 1135	. . . . . . 7 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ ¬ 𝑋 < 𝐼) → 𝑋 ∈ (1...𝑀))
40		simp2 1139	. . . . . . 7 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ ¬ 𝑋 < 𝐼) → ¬ 𝑋 = 𝐼)
41		simp3 1140	. . . . . . 7 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ ¬ 𝑋 < 𝐼) → ¬ 𝑋 < 𝐼)
42		metakunt31.9	. . . . . . 7 ⊢ 𝐻 = if(𝐼 ≤ (𝑋 − 𝐼), 1, 0)
43	36, 37, 38, 39, 7, 9, 40, 41, 8, 42	metakunt30 39876	. . . . . 6 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ ¬ 𝑋 < 𝐼) → (𝐶‘(𝐵‘(𝐴‘𝑋))) = ((𝑋 − 𝐼) + 𝐻))
44	40	iffalsed 4450	. . . . . . . 8 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ ¬ 𝑋 < 𝐼) → if(𝑋 = 𝐼, 𝑋, if(𝑋 < 𝐼, ((𝑋 + (𝑀 − 𝐼)) + 𝐺), ((𝑋 − 𝐼) + 𝐻))) = if(𝑋 < 𝐼, ((𝑋 + (𝑀 − 𝐼)) + 𝐺), ((𝑋 − 𝐼) + 𝐻)))
45	41	iffalsed 4450	. . . . . . . 8 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ ¬ 𝑋 < 𝐼) → if(𝑋 < 𝐼, ((𝑋 + (𝑀 − 𝐼)) + 𝐺), ((𝑋 − 𝐼) + 𝐻)) = ((𝑋 − 𝐼) + 𝐻))
46	44, 45	eqtrd 2777	. . . . . . 7 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ ¬ 𝑋 < 𝐼) → if(𝑋 = 𝐼, 𝑋, if(𝑋 < 𝐼, ((𝑋 + (𝑀 − 𝐼)) + 𝐺), ((𝑋 − 𝐼) + 𝐻))) = ((𝑋 − 𝐼) + 𝐻))
47	46	eqcomd 2743	. . . . . 6 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ ¬ 𝑋 < 𝐼) → ((𝑋 − 𝐼) + 𝐻) = if(𝑋 = 𝐼, 𝑋, if(𝑋 < 𝐼, ((𝑋 + (𝑀 − 𝐼)) + 𝐺), ((𝑋 − 𝐼) + 𝐻))))
48	43, 47	eqtrd 2777	. . . . 5 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ ¬ 𝑋 < 𝐼) → (𝐶‘(𝐵‘(𝐴‘𝑋))) = if(𝑋 = 𝐼, 𝑋, if(𝑋 < 𝐼, ((𝑋 + (𝑀 − 𝐼)) + 𝐺), ((𝑋 − 𝐼) + 𝐻))))
49	16	a1i 11	. . . . 5 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ ¬ 𝑋 < 𝐼) → if(𝑋 = 𝐼, 𝑋, if(𝑋 < 𝐼, ((𝑋 + (𝑀 − 𝐼)) + 𝐺), ((𝑋 − 𝐼) + 𝐻))) = 𝑅)
50	48, 49	eqtrd 2777	. . . 4 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼 ∧ ¬ 𝑋 < 𝐼) → (𝐶‘(𝐵‘(𝐴‘𝑋))) = 𝑅)
51	50	3expa 1120	. . 3 ⊢ (((𝜑 ∧ ¬ 𝑋 = 𝐼) ∧ ¬ 𝑋 < 𝐼) → (𝐶‘(𝐵‘(𝐴‘𝑋))) = 𝑅)
52	35, 51	pm2.61dan 813	. 2 ⊢ ((𝜑 ∧ ¬ 𝑋 = 𝐼) → (𝐶‘(𝐵‘(𝐴‘𝑋))) = 𝑅)
53	18, 52	pm2.61dan 813	1 ⊢ (𝜑 → (𝐶‘(𝐵‘(𝐴‘𝑋))) = 𝑅)

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ∧ wa 399 ∧ w3a 1089 = wceq 1543 ∈ wcel 2110 ifcif 4439 class class class wbr 5053 ↦ cmpt 5135 ‘cfv 6380 (class class class)co 7213 0cc0 10729 1c1 10730 + caddc 10732 < clt 10867 ≤ cle 10868 − cmin 11062 ℕcn 11830 ...cfz 13095

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 1976 ax-7 2016 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2158 ax-12 2175 ax-ext 2708 ax-sep 5192 ax-nul 5199 ax-pow 5258 ax-pr 5322 ax-un 7523 ax-cnex 10785 ax-resscn 10786 ax-1cn 10787 ax-icn 10788 ax-addcl 10789 ax-addrcl 10790 ax-mulcl 10791 ax-mulrcl 10792 ax-mulcom 10793 ax-addass 10794 ax-mulass 10795 ax-distr 10796 ax-i2m1 10797 ax-1ne0 10798 ax-1rid 10799 ax-rnegex 10800 ax-rrecex 10801 ax-cnre 10802 ax-pre-lttri 10803 ax-pre-lttrn 10804 ax-pre-ltadd 10805 ax-pre-mulgt0 10806

This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2071 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2729 df-clel 2816 df-nfc 2886 df-ne 2941 df-nel 3047 df-ral 3066 df-rex 3067 df-reu 3068 df-rab 3070 df-v 3410 df-sbc 3695 df-csb 3812 df-dif 3869 df-un 3871 df-in 3873 df-ss 3883 df-pss 3885 df-nul 4238 df-if 4440 df-pw 4515 df-sn 4542 df-pr 4544 df-tp 4546 df-op 4548 df-uni 4820 df-iun 4906 df-br 5054 df-opab 5116 df-mpt 5136 df-tr 5162 df-id 5455 df-eprel 5460 df-po 5468 df-so 5469 df-fr 5509 df-we 5511 df-xp 5557 df-rel 5558 df-cnv 5559 df-co 5560 df-dm 5561 df-rn 5562 df-res 5563 df-ima 5564 df-pred 6160 df-ord 6216 df-on 6217 df-lim 6218 df-suc 6219 df-iota 6338 df-fun 6382 df-fn 6383 df-f 6384 df-f1 6385 df-fo 6386 df-f1o 6387 df-fv 6388 df-riota 7170 df-ov 7216 df-oprab 7217 df-mpo 7218 df-om 7645 df-1st 7761 df-2nd 7762 df-wrecs 8047 df-recs 8108 df-rdg 8146 df-er 8391 df-en 8627 df-dom 8628 df-sdom 8629 df-pnf 10869 df-mnf 10870 df-xr 10871 df-ltxr 10872 df-le 10873 df-sub 11064 df-neg 11065 df-nn 11831 df-n0 12091 df-z 12177 df-uz 12439 df-rp 12587 df-fz 13096

This theorem is referenced by: metakunt33 39879

W3C validator