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Theorem atssbase 40349
Description: The set of atoms is a subset of the base set. (atssch 32946 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 40348 . 2 (𝑥 ∈ 𝐴 → 𝑥 ∈ 𝐵)
43ssriv 3933 1 𝐴 ⊆ 𝐵
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   = wceq 1570   ⊆ wss 3914  ‘cfv 6539  Basecbs 17388  Atomscatm 40322
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 3900  df-un 3902  df-in 3904  df-ss 3915  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 6495  df-fun 6541  df-fv 6547  df-ats 40326
This theorem is used by:  atlatmstc  40378  atlatle  40379  pmapssbaN  40819  pmaple  40820  polsubN  40966  2polvalN  40973  2polssN  40974  3polN  40975  2pmaplubN  40985  paddunN  40986  poldmj1N  40987  pnonsingN  40992  ispsubcl2N  41006  psubclinN  41007  paddatclN  41008  polsubclN  41011  poml4N  41012
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