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Theorem rrxsuppss 24567
Description: Support of Euclidean vectors. (Contributed by Thierry Arnoux, 7-Jul-2019.)
Hypotheses
Ref Expression
rrxmval.1 𝑋 = { ∈ (ℝ ↑m 𝐼) ∣ finSupp 0}
rrxf.1 (𝜑𝐹𝑋)
Assertion
Ref Expression
rrxsuppss (𝜑 → (𝐹 supp 0) ⊆ 𝐼)
Distinct variable groups:   ,𝐹   ,𝐼
Allowed substitution hints:   𝜑()   𝑋()

Proof of Theorem rrxsuppss
StepHypRef Expression
1 suppssdm 7993 . 2 (𝐹 supp 0) ⊆ dom 𝐹
2 rrxmval.1 . . 3 𝑋 = { ∈ (ℝ ↑m 𝐼) ∣ finSupp 0}
3 rrxf.1 . . 3 (𝜑𝐹𝑋)
42, 3rrxf 24565 . 2 (𝜑𝐹:𝐼⟶ℝ)
51, 4fssdm 6620 1 (𝜑 → (𝐹 supp 0) ⊆ 𝐼)
Colors of variables: wff setvar class
Syntax hints:  wi 4   = wceq 1539  wcel 2106  {crab 3068  wss 3887   class class class wbr 5074  (class class class)co 7275   supp csupp 7977  m cmap 8615   finSupp cfsupp 9128  cr 10870  0cc0 10871
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  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 2709  ax-sep 5223  ax-nul 5230  ax-pow 5288  ax-pr 5352  ax-un 7588
This theorem depends on definitions:  df-bi 206  df-an 397  df-or 845  df-3an 1088  df-tru 1542  df-fal 1552  df-ex 1783  df-nf 1787  df-sb 2068  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2816  df-nfc 2889  df-ne 2944  df-ral 3069  df-rex 3070  df-rab 3073  df-v 3434  df-sbc 3717  df-csb 3833  df-dif 3890  df-un 3892  df-in 3894  df-ss 3904  df-nul 4257  df-if 4460  df-pw 4535  df-sn 4562  df-pr 4564  df-op 4568  df-uni 4840  df-iun 4926  df-br 5075  df-opab 5137  df-mpt 5158  df-id 5489  df-xp 5595  df-rel 5596  df-cnv 5597  df-co 5598  df-dm 5599  df-rn 5600  df-res 5601  df-ima 5602  df-iota 6391  df-fun 6435  df-fn 6436  df-f 6437  df-fv 6441  df-ov 7278  df-oprab 7279  df-mpo 7280  df-1st 7831  df-2nd 7832  df-supp 7978  df-map 8617
This theorem is referenced by:  rrxmval  24569  rrxmet  24572  rrxdstprj1  24573
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