Theorem naddwordnexlem3 43361

Description: When 𝐴 is the sum of a limit ordinal (or zero) and a natural number and 𝐵 is the sum of a larger limit ordinal and a smaller natural number, every natural sum of 𝐴 with a natural number is less that 𝐵. (Contributed by RP, 14-Feb-2025.)

Hypotheses

Ref	Expression
naddwordnex.a	⊢ (𝜑 → 𝐴 = ((ω ·o 𝐶) +o 𝑀))
naddwordnex.b	⊢ (𝜑 → 𝐵 = ((ω ·o 𝐷) +o 𝑁))
naddwordnex.c	⊢ (𝜑 → 𝐶 ∈ 𝐷)
naddwordnex.d	⊢ (𝜑 → 𝐷 ∈ On)
naddwordnex.m	⊢ (𝜑 → 𝑀 ∈ ω)
naddwordnex.n	⊢ (𝜑 → 𝑁 ∈ 𝑀)

Assertion

Ref	Expression
naddwordnexlem3	⊢ (𝜑 → ∀𝑥 ∈ ω (𝐴 +no 𝑥) ∈ 𝐵)

Distinct variable group:   𝜑,𝑥

Allowed substitution hints:   𝐴(𝑥)   𝐵(𝑥)   𝐶(𝑥)   𝐷(𝑥)   𝑀(𝑥)   𝑁(𝑥)

Proof of Theorem naddwordnexlem3

Step	Hyp	Ref	Expression
1		naddwordnex.a	. . . . . 6 ⊢ (𝜑 → 𝐴 = ((ω ·o 𝐶) +o 𝑀))
2		omelon 9715	. . . . . . . 8 ⊢ ω ∈ On
3		naddwordnex.d	. . . . . . . . 9 ⊢ (𝜑 → 𝐷 ∈ On)
4		naddwordnex.c	. . . . . . . . 9 ⊢ (𝜑 → 𝐶 ∈ 𝐷)
5		onelon 6420	. . . . . . . . 9 ⊢ ((𝐷 ∈ On ∧ 𝐶 ∈ 𝐷) → 𝐶 ∈ On)
6	3, 4, 5	syl2anc 583	. . . . . . . 8 ⊢ (𝜑 → 𝐶 ∈ On)
7		omcl 8592	. . . . . . . 8 ⊢ ((ω ∈ On ∧ 𝐶 ∈ On) → (ω ·o 𝐶) ∈ On)
8	2, 6, 7	sylancr 586	. . . . . . 7 ⊢ (𝜑 → (ω ·o 𝐶) ∈ On)
9		naddwordnex.m	. . . . . . . 8 ⊢ (𝜑 → 𝑀 ∈ ω)
10		nnon 7909	. . . . . . . 8 ⊢ (𝑀 ∈ ω → 𝑀 ∈ On)
11	9, 10	syl 17	. . . . . . 7 ⊢ (𝜑 → 𝑀 ∈ On)
12		oacl 8591	. . . . . . 7 ⊢ (((ω ·o 𝐶) ∈ On ∧ 𝑀 ∈ On) → ((ω ·o 𝐶) +o 𝑀) ∈ On)
13	8, 11, 12	syl2anc 583	. . . . . 6 ⊢ (𝜑 → ((ω ·o 𝐶) +o 𝑀) ∈ On)
14	1, 13	eqeltrd 2844	. . . . 5 ⊢ (𝜑 → 𝐴 ∈ On)
15		naddonnn 43357	. . . . 5 ⊢ ((𝐴 ∈ On ∧ 𝑥 ∈ ω) → (𝐴 +o 𝑥) = (𝐴 +no 𝑥))
16	14, 15	sylan 579	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ ω) → (𝐴 +o 𝑥) = (𝐴 +no 𝑥))
17		naddwordnex.b	. . . . . . . 8 ⊢ (𝜑 → 𝐵 = ((ω ·o 𝐷) +o 𝑁))
18		naddwordnex.n	. . . . . . . 8 ⊢ (𝜑 → 𝑁 ∈ 𝑀)
19	1, 17, 4, 3, 9, 18	naddwordnexlem0 43358	. . . . . . 7 ⊢ (𝜑 → (𝐴 ∈ (ω ·o suc 𝐶) ∧ (ω ·o suc 𝐶) ⊆ 𝐵))
20	19	simprd 495	. . . . . 6 ⊢ (𝜑 → (ω ·o suc 𝐶) ⊆ 𝐵)
21	20	adantr 480	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ ω) → (ω ·o suc 𝐶) ⊆ 𝐵)
22	8, 2	jctil 519	. . . . . . . 8 ⊢ (𝜑 → (ω ∈ On ∧ (ω ·o 𝐶) ∈ On))
23	22	adantr 480	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ ω) → (ω ∈ On ∧ (ω ·o 𝐶) ∈ On))
24		nnacl 8667	. . . . . . . 8 ⊢ ((𝑀 ∈ ω ∧ 𝑥 ∈ ω) → (𝑀 +o 𝑥) ∈ ω)
25	9, 24	sylan 579	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ ω) → (𝑀 +o 𝑥) ∈ ω)
26		oaordi 8602	. . . . . . 7 ⊢ ((ω ∈ On ∧ (ω ·o 𝐶) ∈ On) → ((𝑀 +o 𝑥) ∈ ω → ((ω ·o 𝐶) +o (𝑀 +o 𝑥)) ∈ ((ω ·o 𝐶) +o ω)))
27	23, 25, 26	sylc 65	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ ω) → ((ω ·o 𝐶) +o (𝑀 +o 𝑥)) ∈ ((ω ·o 𝐶) +o ω))
28	1	adantr 480	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ ω) → 𝐴 = ((ω ·o 𝐶) +o 𝑀))
29	28	oveq1d 7463	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ ω) → (𝐴 +o 𝑥) = (((ω ·o 𝐶) +o 𝑀) +o 𝑥))
30		nnon 7909	. . . . . . . 8 ⊢ (𝑥 ∈ ω → 𝑥 ∈ On)
31		oaass 8617	. . . . . . . 8 ⊢ (((ω ·o 𝐶) ∈ On ∧ 𝑀 ∈ On ∧ 𝑥 ∈ On) → (((ω ·o 𝐶) +o 𝑀) +o 𝑥) = ((ω ·o 𝐶) +o (𝑀 +o 𝑥)))
32	8, 11, 30, 31	syl2an3an 1422	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ ω) → (((ω ·o 𝐶) +o 𝑀) +o 𝑥) = ((ω ·o 𝐶) +o (𝑀 +o 𝑥)))
33	29, 32	eqtrd 2780	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ ω) → (𝐴 +o 𝑥) = ((ω ·o 𝐶) +o (𝑀 +o 𝑥)))
34	6	adantr 480	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ ω) → 𝐶 ∈ On)
35		omsuc 8582	. . . . . . 7 ⊢ ((ω ∈ On ∧ 𝐶 ∈ On) → (ω ·o suc 𝐶) = ((ω ·o 𝐶) +o ω))
36	2, 34, 35	sylancr 586	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ ω) → (ω ·o suc 𝐶) = ((ω ·o 𝐶) +o ω))
37	27, 33, 36	3eltr4d 2859	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ ω) → (𝐴 +o 𝑥) ∈ (ω ·o suc 𝐶))
38	21, 37	sseldd 4009	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ ω) → (𝐴 +o 𝑥) ∈ 𝐵)
39	16, 38	eqeltrrd 2845	. . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ ω) → (𝐴 +no 𝑥) ∈ 𝐵)
40	39	ex 412	. 2 ⊢ (𝜑 → (𝑥 ∈ ω → (𝐴 +no 𝑥) ∈ 𝐵))
41	40	ralrimiv 3151	1 ⊢ (𝜑 → ∀𝑥 ∈ ω (𝐴 +no 𝑥) ∈ 𝐵)

Syntax hints:   → wi 4   ∧ wa 395   = wceq 1537   ∈ wcel 2108  ∀wral 3067   ⊆ wss 3976  Oncon0 6395  suc csuc 6397  (class class class)co 7448  ωcom 7903   +_o coa 8519   ·_o comu 8520   +no cnadd 8721

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1793  ax-4 1807  ax-5 1909  ax-6 1967  ax-7 2007  ax-8 2110  ax-9 2118  ax-10 2141  ax-11 2158  ax-12 2178  ax-ext 2711  ax-rep 5303  ax-sep 5317  ax-nul 5324  ax-pow 5383  ax-pr 5447  ax-un 7770  ax-inf2 9710

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 847  df-3or 1088  df-3an 1089  df-tru 1540  df-fal 1550  df-ex 1778  df-nf 1782  df-sb 2065  df-mo 2543  df-eu 2572  df-clab 2718  df-cleq 2732  df-clel 2819  df-nfc 2895  df-ne 2947  df-ral 3068  df-rex 3077  df-rmo 3388  df-reu 3389  df-rab 3444  df-v 3490  df-sbc 3805  df-csb 3922  df-dif 3979  df-un 3981  df-in 3983  df-ss 3993  df-pss 3996  df-nul 4353  df-if 4549  df-pw 4624  df-sn 4649  df-pr 4651  df-op 4655  df-uni 4932  df-int 4971  df-iun 5017  df-br 5167  df-opab 5229  df-mpt 5250  df-tr 5284  df-id 5593  df-eprel 5599  df-po 5607  df-so 5608  df-fr 5652  df-se 5653  df-we 5654  df-xp 5706  df-rel 5707  df-cnv 5708  df-co 5709  df-dm 5710  df-rn 5711  df-res 5712  df-ima 5713  df-pred 6332  df-ord 6398  df-on 6399  df-lim 6400  df-suc 6401  df-iota 6525  df-fun 6575  df-fn 6576  df-f 6577  df-f1 6578  df-fo 6579  df-f1o 6580  df-fv 6581  df-ov 7451  df-oprab 7452  df-mpo 7453  df-om 7904  df-1st 8030  df-2nd 8031  df-frecs 8322  df-wrecs 8353  df-recs 8427  df-rdg 8466  df-oadd 8526  df-omul 8527  df-nadd 8722

This theorem is referenced by: (None)