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Theorem atssbase 40315
Description: The set of atoms is a subset of the base set. (atssch 32927 analog.) (Contributed by NM, 21-Oct-2011.)
Hypotheses
Ref Expression
atombase.b 𝐵 = (Base‘𝐾)
atombase.a 𝐴 = (Atoms‘𝐾)
Assertion
Ref Expression
atssbase 𝐴 ⊆ 𝐵

Proof of Theorem atssbase
Dummy variable 𝑥 is distinct from all other variables.
StepHypRef Expression
1 atombase.b . . 3 𝐵 = (Base‘𝐾)
2 atombase.a . . 3 𝐴 = (Atoms‘𝐾)
31, 2atbase 40314 . 2 (𝑥 ∈ 𝐴 → 𝑥 ∈ 𝐵)
43ssriv 3935 1 𝐴 ⊆ 𝐵
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   = wceq 1570   ⊆ wss 3899  ‘cfv 6531  Basecbs 17367  Atomscatm 40288
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2213  ax-ext 2733  ax-sep 5249  ax-nul 5260  ax-pr 5391
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2565  df-eu 2595  df-clab 2740  df-cleq 2753  df-clel 2836  df-nfc 2910  df-ne 2957  df-ral 3078  df-rex 3088  df-rab 3414  df-v 3453  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-nul 4280  df-if 4483  df-pw 4559  df-sn 4585  df-pr 4587  df-op 4591  df-uni 4868  df-br 5104  df-opab 5168  df-mpt 5187  df-id 5546  df-xp 5657  df-rel 5658  df-cnv 5659  df-co 5660  df-dm 5661  df-iota 6487  df-fun 6533  df-fv 6539  df-ats 40292
This theorem is used by:  atlatmstc  40344  atlatle  40345  pmapssbaN  40785  pmaple  40786  polsubN  40932  2polvalN  40939  2polssN  40940  3polN  40941  2pmaplubN  40951  paddunN  40952  poldmj1N  40953  pnonsingN  40958  ispsubcl2N  40972  psubclinN  40973  paddatclN  40974  polsubclN  40977  poml4N  40978
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