Theorem rmsupp0 47034

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 6891	. . . . 5 ⊢ (𝑣 = 𝑤 → (𝐴‘𝑣) = (𝐴‘𝑤))
2	1	oveq2d 7424	. . . 4 ⊢ (𝑣 = 𝑤 → (𝐶(.r‘𝑀)(𝐴‘𝑣)) = (𝐶(.r‘𝑀)(𝐴‘𝑤)))
3	2	cbvmptv 5261	. . 3 ⊢ (𝑣 ∈ 𝑉 ↦ (𝐶(.r‘𝑀)(𝐴‘𝑣))) = (𝑤 ∈ 𝑉 ↦ (𝐶(.r‘𝑀)(𝐴‘𝑤)))
4		simpl2 1192	. . 3 ⊢ (((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) → 𝑉 ∈ 𝑋)
5		fvexd 6906	. . 3 ⊢ (((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) → (0g‘𝑀) ∈ V)
6		ovexd 7443	. . 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 8171	. 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 1214	. . . . . 6 ⊢ ((((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) ∧ 𝑤 ∈ 𝑉) → 𝐶 = (0g‘𝑀))
9	8	oveq1d 7423	. . . . 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 1212	. . . . . 6 ⊢ ((((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) ∧ 𝑤 ∈ 𝑉) → 𝑀 ∈ Ring)
11		elmapi 8842	. . . . . . . . 9 ⊢ (𝐴 ∈ (𝑅 ↑m 𝑉) → 𝐴:𝑉⟶𝑅)
12		ffvelcdm 7083	. . . . . . . . . . 11 ⊢ ((𝐴:𝑉⟶𝑅 ∧ 𝑤 ∈ 𝑉) → (𝐴‘𝑤) ∈ 𝑅)
13		rmsuppss.r	. . . . . . . . . . 11 ⊢ 𝑅 = (Base‘𝑀)
14	12, 13	eleqtrdi 2843	. . . . . . . . . 10 ⊢ ((𝐴:𝑉⟶𝑅 ∧ 𝑤 ∈ 𝑉) → (𝐴‘𝑤) ∈ (Base‘𝑀))
15	14	ex 413	. . . . . . . . 9 ⊢ (𝐴:𝑉⟶𝑅 → (𝑤 ∈ 𝑉 → (𝐴‘𝑤) ∈ (Base‘𝑀)))
16	11, 15	syl 17	. . . . . . . 8 ⊢ (𝐴 ∈ (𝑅 ↑m 𝑉) → (𝑤 ∈ 𝑉 → (𝐴‘𝑤) ∈ (Base‘𝑀)))
17	16	adantl 482	. . . . . . 7 ⊢ (((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) → (𝑤 ∈ 𝑉 → (𝐴‘𝑤) ∈ (Base‘𝑀)))
18	17	imp 407	. . . . . 6 ⊢ ((((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) ∧ 𝑤 ∈ 𝑉) → (𝐴‘𝑤) ∈ (Base‘𝑀))
19		eqid 2732	. . . . . . 7 ⊢ (Base‘𝑀) = (Base‘𝑀)
20		eqid 2732	. . . . . . 7 ⊢ (.r‘𝑀) = (.r‘𝑀)
21		eqid 2732	. . . . . . 7 ⊢ (0g‘𝑀) = (0g‘𝑀)
22	19, 20, 21	ringlz 20106	. . . . . 6 ⊢ ((𝑀 ∈ Ring ∧ (𝐴‘𝑤) ∈ (Base‘𝑀)) → ((0g‘𝑀)(.r‘𝑀)(𝐴‘𝑤)) = (0g‘𝑀))
23	10, 18, 22	syl2anc 584	. . . . 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 2772	. . . 4 ⊢ ((((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) ∧ 𝑤 ∈ 𝑉) → (𝐶(.r‘𝑀)(𝐴‘𝑤)) = (0g‘𝑀))
25	24	neeq1d 3000	. . 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 3439	. 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 2949	. . . . 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 3150	. . 3 ⊢ (((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) → ∀𝑤 ∈ 𝑉 ¬ (0g‘𝑀) ≠ (0g‘𝑀))
30		rabeq0 4384	. . 3 ⊢ ({𝑤 ∈ 𝑉 ∣ (0g‘𝑀) ≠ (0g‘𝑀)} = ∅ ↔ ∀𝑤 ∈ 𝑉 ¬ (0g‘𝑀) ≠ (0g‘𝑀))
31	29, 30	sylibr 233	. 2 ⊢ (((𝑀 ∈ Ring ∧ 𝑉 ∈ 𝑋 ∧ 𝐶 = (0g‘𝑀)) ∧ 𝐴 ∈ (𝑅 ↑m 𝑉)) → {𝑤 ∈ 𝑉 ∣ (0g‘𝑀) ≠ (0g‘𝑀)} = ∅)
32	7, 26, 31	3eqtrd 2776	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 396   ∧ w3a 1087   = wceq 1541   ∈ wcel 2106   ≠ wne 2940  ∀wral 3061  {crab 3432  Vcvv 3474  ∅c0 4322   ↦ cmpt 5231  ⟶wf 6539  ‘cfv 6543  (class class class)co 7408   supp csupp 8145   ↑_m cmap 8819  Basecbs 17143  ._rcmulr 17197  0_gc0g 17384  Ringcrg 20055

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1913  ax-6 1971  ax-7 2011  ax-8 2108  ax-9 2116  ax-10 2137  ax-11 2154  ax-12 2171  ax-ext 2703  ax-rep 5285  ax-sep 5299  ax-nul 5306  ax-pow 5363  ax-pr 5427  ax-un 7724  ax-cnex 11165  ax-resscn 11166  ax-1cn 11167  ax-icn 11168  ax-addcl 11169  ax-addrcl 11170  ax-mulcl 11171  ax-mulrcl 11172  ax-mulcom 11173  ax-addass 11174  ax-mulass 11175  ax-distr 11176  ax-i2m1 11177  ax-1ne0 11178  ax-1rid 11179  ax-rnegex 11180  ax-rrecex 11181  ax-cnre 11182  ax-pre-lttri 11183  ax-pre-lttrn 11184  ax-pre-ltadd 11185  ax-pre-mulgt0 11186

This theorem depends on definitions:  df-bi 206  df-an 397  df-or 846  df-3or 1088  df-3an 1089  df-tru 1544  df-fal 1554  df-ex 1782  df-nf 1786  df-sb 2068  df-mo 2534  df-eu 2563  df-clab 2710  df-cleq 2724  df-clel 2810  df-nfc 2885  df-ne 2941  df-nel 3047  df-ral 3062  df-rex 3071  df-rmo 3376  df-reu 3377  df-rab 3433  df-v 3476  df-sbc 3778  df-csb 3894  df-dif 3951  df-un 3953  df-in 3955  df-ss 3965  df-pss 3967  df-nul 4323  df-if 4529  df-pw 4604  df-sn 4629  df-pr 4631  df-op 4635  df-uni 4909  df-iun 4999  df-br 5149  df-opab 5211  df-mpt 5232  df-tr 5266  df-id 5574  df-eprel 5580  df-po 5588  df-so 5589  df-fr 5631  df-we 5633  df-xp 5682  df-rel 5683  df-cnv 5684  df-co 5685  df-dm 5686  df-rn 5687  df-res 5688  df-ima 5689  df-pred 6300  df-ord 6367  df-on 6368  df-lim 6369  df-suc 6370  df-iota 6495  df-fun 6545  df-fn 6546  df-f 6547  df-f1 6548  df-fo 6549  df-f1o 6550  df-fv 6551  df-riota 7364  df-ov 7411  df-oprab 7412  df-mpo 7413  df-om 7855  df-1st 7974  df-2nd 7975  df-supp 8146  df-frecs 8265  df-wrecs 8296  df-recs 8370  df-rdg 8409  df-er 8702  df-map 8821  df-en 8939  df-dom 8940  df-sdom 8941  df-pnf 11249  df-mnf 11250  df-xr 11251  df-ltxr 11252  df-le 11253  df-sub 11445  df-neg 11446  df-nn 12212  df-2 12274  df-sets 17096  df-slot 17114  df-ndx 17126  df-base 17144  df-plusg 17209  df-0g 17386  df-mgm 18560  df-sgrp 18609  df-mnd 18625  df-grp 18821  df-minusg 18822  df-mgp 19987  df-ring 20057

This theorem is referenced by: (None)