Theorem rmsupp0 49032

Description: The support of a mapping of a multiplication of zero with a function into a ring is empty. (Contributed by AV, 10-Apr-2019.)

Hypothesis

Ref	Expression
rmsuppss.r	⊢ 𝑅 = (Base‘𝑀)

Assertion

Ref	Expression
rmsupp0	⊢ (((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) → ((𝑣 ∈ 𝑉 ↦ (𝐶(.r‘𝑀)(𝐴‘𝑣))) supp (0g‘𝑀)) = ∅)

Distinct variable groups:   𝑣,𝐴   𝑣,𝐶   𝑣,𝑀   𝑣,𝑅   𝑣,𝑋   𝑣,𝑉

Proof of Theorem rmsupp0

Dummy variable 𝑤 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		fveq2 6882	. . . . 5 ⊢ (𝑣 = 𝑤 → (𝐴‘𝑣) = (𝐴‘𝑤))
2	1	oveq2d 7427	. . . 4 ⊢ (𝑣 = 𝑤 → (𝐶(.r‘𝑀)(𝐴‘𝑣)) = (𝐶(.r‘𝑀)(𝐴‘𝑤)))
3	2	cbvmptv 5219	. . 3 ⊢ (𝑣 ∈ 𝑉 ↦ (𝐶(.r‘𝑀)(𝐴‘𝑣))) = (𝑤 ∈ 𝑉 ↦ (𝐶(.r‘𝑀)(𝐴‘𝑤)))
4		simpl2 1209	. . 3 ⊢ (((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) → 𝑉 ∈ 𝑋)
5		fvexd 6897	. . 3 ⊢ (((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) → (0g‘𝑀) ∈ V)
6		ovexd 7446	. . 3 ⊢ ((((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) ∧ 𝑤 ∈ 𝑉) → (𝐶(.r‘𝑀)(𝐴‘𝑤)) ∈ V)
7	3, 4, 5, 6	mptsuppd 8182	. 2 ⊢ (((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) → ((𝑣 ∈ 𝑉 ↦ (𝐶(.r‘𝑀)(𝐴‘𝑣))) supp (0g‘𝑀)) = {𝑤 ∈ 𝑉 ∣ (𝐶(.r‘𝑀)(𝐴‘𝑤)) ≠ (0g‘𝑀)})
8		simpll3 1231	. . . . . 6 ⊢ ((((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) ∧ 𝑤 ∈ 𝑉) → 𝐶 = (0g‘𝑀))
9	8	oveq1d 7426	. . . . 5 ⊢ ((((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) ∧ 𝑤 ∈ 𝑉) → (𝐶(.r‘𝑀)(𝐴‘𝑤)) = ((0g‘𝑀)(.r‘𝑀)(𝐴‘𝑤)))
10		simpll1 1229	. . . . . 6 ⊢ ((((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) ∧ 𝑤 ∈ 𝑉) → 𝑀 ∈ Ring)
11		elmapi 8845	. . . . . . . . 9 ⊢ (𝐴 ∈ (𝑅 ↑m 𝑉) → 𝐴:𝑉⟶𝑅)
12		ffvelcdm 7077	. . . . . . . . . . 11 ⊢ ((𝐴:𝑉⟶𝑅 ∧ 𝑤 ∈ 𝑉) → (𝐴‘𝑤) ∈ 𝑅)
13		rmsuppss.r	. . . . . . . . . . 11 ⊢ 𝑅 = (Base‘𝑀)
14	12, 13	eleqtrdi 2879	. . . . . . . . . 10 ⊢ ((𝐴:𝑉⟶𝑅 ∧ 𝑤 ∈ 𝑉) → (𝐴‘𝑤) ∈ (Base‘𝑀))
15	14	ex 417	. . . . . . . . 9 ⊢ (𝐴:𝑉⟶𝑅 → (𝑤 ∈ 𝑉 → (𝐴‘𝑤) ∈ (Base‘𝑀)))
16	11, 15	syl 18	. . . . . . . 8 ⊢ (𝐴 ∈ (𝑅 ↑m 𝑉) → (𝑤 ∈ 𝑉 → (𝐴‘𝑤) ∈ (Base‘𝑀)))
17	16	adantl 486	. . . . . . 7 ⊢ (((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) → (𝑤 ∈ 𝑉 → (𝐴‘𝑤) ∈ (Base‘𝑀)))
18	17	imp 411	. . . . . 6 ⊢ ((((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) ∧ 𝑤 ∈ 𝑉) → (𝐴‘𝑤) ∈ (Base‘𝑀))
19		eqid 2769	. . . . . . 7 ⊢ (Base‘𝑀) = (Base‘𝑀)
20		eqid 2769	. . . . . . 7 ⊢ (.r‘𝑀) = (.r‘𝑀)
21		eqid 2769	. . . . . . 7 ⊢ (0g‘𝑀) = (0g‘𝑀)
22	19, 20, 21	ringlz 20375	. . . . . 6 ⊢ ((𝑀 ∈ Ring ∧ (𝐴‘𝑤) ∈ (Base‘𝑀)) → ((0g‘𝑀)(.r‘𝑀)(𝐴‘𝑤)) = (0g‘𝑀))
23	10, 18, 22	syl2anc 595	. . . . 5 ⊢ ((((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) ∧ 𝑤 ∈ 𝑉) → ((0g‘𝑀)(.r‘𝑀)(𝐴‘𝑤)) = (0g‘𝑀))
24	9, 23	eqtrd 2804	. . . 4 ⊢ ((((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) ∧ 𝑤 ∈ 𝑉) → (𝐶(.r‘𝑀)(𝐴‘𝑤)) = (0g‘𝑀))
25	24	neeq1d 3023	. . 3 ⊢ ((((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) ∧ 𝑤 ∈ 𝑉) → ((𝐶(.r‘𝑀)(𝐴‘𝑤)) ≠ (0g‘𝑀) ↔ (0g‘𝑀) ≠ (0g‘𝑀)))
26	25	rabbidva 3429	. 2 ⊢ (((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) → {𝑤 ∈ 𝑉 ∣ (𝐶(.r‘𝑀)(𝐴‘𝑤)) ≠ (0g‘𝑀)} = {𝑤 ∈ 𝑉 ∣ (0g‘𝑀) ≠ (0g‘𝑀)})
27		neirr 2973	. . . . 5 ⊢ ¬ (0g‘𝑀) ≠ (0g‘𝑀)
28	27	a1i 11	. . . 4 ⊢ (((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) → ¬ (0g‘𝑀) ≠ (0g‘𝑀))
29	28	ralrimivw 3167	. . 3 ⊢ (((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) → ∀𝑤 ∈ 𝑉 ¬ (0g‘𝑀) ≠ (0g‘𝑀))
30		rabeq0 4352	. . 3 ⊢ ({𝑤 ∈ 𝑉 ∣ (0g‘𝑀) ≠ (0g‘𝑀)} = ∅ ↔ ∀𝑤 ∈ 𝑉 ¬ (0g‘𝑀) ≠ (0g‘𝑀))
31	29, 30	sylibr 237	. 2 ⊢ (((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) → {𝑤 ∈ 𝑉 ∣ (0g‘𝑀) ≠ (0g‘𝑀)} = ∅)
32	7, 26, 31	3eqtrd 2808	1 ⊢ (((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) → ((𝑣 ∈ 𝑉 ↦ (𝐶(.r‘𝑀)(𝐴‘𝑣))) supp (0g‘𝑀)) = ∅)

Syntax hints:  ¬ wn 3   → wi 4   ∧ wa 400   ∧ w3a 1101   = wceq 1567   ∈ wcel 2149   ≠ wne 2964  ∀wral 3085  {crab 3423  Vcvv 3463  ∅c0 4294   ↦ cmpt 5196  ⟶wf 6533  ‘cfv 6537  (class class class)co 7411   supp csupp 8155   ↑_m cmap 8823  Basecbs 17268  ._rcmulr 17310  0_gc0g 17491  Ringcrg 20314

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1822  ax-4 1836  ax-5 1937  ax-6 1994  ax-7 2035  ax-8 2151  ax-9 2159  ax-10 2182  ax-11 2198  ax-12 2219  ax-ext 2741  ax-rep 5242  ax-sep 5261  ax-nul 5271  ax-pow 5337  ax-pr 5405  ax-un 7733  ax-cnex 11155  ax-resscn 11156  ax-1cn 11157  ax-icn 11158  ax-addcl 11159  ax-addrcl 11160  ax-mulcl 11161  ax-mulrcl 11162  ax-mulcom 11163  ax-addass 11164  ax-mulass 11165  ax-distr 11166  ax-i2m1 11167  ax-1ne0 11168  ax-1rid 11169  ax-rnegex 11170  ax-rrecex 11171  ax-cnre 11172  ax-pre-lttri 11173  ax-pre-lttrn 11174  ax-pre-ltadd 11175  ax-pre-mulgt0 11176

This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3or 1102  df-3an 1103  df-tru 1570  df-fal 1580  df-ex 1807  df-nf 1811  df-sb 2098  df-mo 2573  df-eu 2603  df-clab 2748  df-cleq 2761  df-clel 2844  df-nfc 2918  df-ne 2965  df-nel 3071  df-ral 3086  df-rex 3096  df-rmo 3376  df-reu 3377  df-rab 3424  df-v 3465  df-sbc 3754  df-csb 3862  df-dif 3916  df-un 3918  df-in 3920  df-ss 3930  df-pss 3933  df-nul 4295  df-if 4493  df-pw 4569  df-sn 4595  df-pr 4597  df-op 4601  df-uni 4877  df-iun 4962  df-br 5114  df-opab 5178  df-mpt 5197  df-tr 5223  df-id 5557  df-eprel 5562  df-po 5570  df-so 5571  df-fr 5615  df-we 5617  df-xp 5668  df-rel 5669  df-cnv 5670  df-co 5671  df-dm 5672  df-rn 5673  df-res 5674  df-ima 5675  df-pred 6303  df-ord 6364  df-on 6365  df-lim 6366  df-suc 6367  df-iota 6493  df-fun 6539  df-fn 6540  df-f 6541  df-f1 6542  df-fo 6543  df-f1o 6544  df-fv 6545  df-riota 7368  df-ov 7414  df-oprab 7415  df-mpo 7416  df-om 7862  df-1st 7985  df-2nd 7986  df-supp 8156  df-frecs 8277  df-wrecs 8308  df-recs 8357  df-rdg 8396  df-er 8693  df-map 8825  df-en 8943  df-dom 8944  df-sdom 8945  df-pnf 11244  df-mnf 11245  df-xr 11246  df-ltxr 11247  df-le 11248  df-sub 11442  df-neg 11443  df-nn 12233  df-2 12302  df-sets 17223  df-slot 17241  df-ndx 17253  df-base 17269  df-plusg 17322  df-0g 17493  df-mgm 18697  df-sgrp 18776  df-mnd 18792  df-grp 19002  df-minusg 19003  df-cmn 19851  df-abl 19852  df-mgp 20216  df-rng 20230  df-ur 20263  df-ring 20316

This theorem is referenced by: (None)