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Theorem atssbase 40440
Description: The set of atoms is a subset of the base set. (atssch 32950 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 40439 . 2 (𝑥 ∈ 𝐴 → 𝑥 ∈ 𝐵)
43ssriv 3912 1 𝐴 ⊆ 𝐵
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   = wceq 1569   ⊆ wss 3895  ‘cfv 6538  Basecbs 17392  Atomscatm 40413
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1827  ax-4 1841  ax-5 1942  ax-6 1999  ax-7 2040  ax-8 2146  ax-9 2154  ax-10 2177  ax-11 2193  ax-12 2212  ax-ext 2732  ax-sep 5248  ax-nul 5259  ax-pr 5390
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1572  df-fal 1582  df-ex 1812  df-nf 1816  df-sb 2099  df-mo 2564  df-eu 2594  df-clab 2739  df-cleq 2752  df-clel 2835  df-nfc 2909  df-ne 2956  df-ral 3077  df-rex 3087  df-rab 3413  df-v 3452  df-ss 3896  df-dif 4047  df-in 4091  df-un 4151  df-nul 4279  df-if 4482  df-pw 4558  df-sn 4585  df-pr 4587  df-op 4835  df-uni 4867  df-br 5103  df-opab 5167  df-mpt 5186  df-id 5545  df-xp 5656  df-rel 5657  df-cnv 5658  df-co 5659  df-dm 5660  df-iota 6494  df-fun 6540  df-fv 6546  df-ats 40417
This theorem is used by:  atlatmstc  40469  atlatle  40470  pmapssbaN  40910  pmaple  40911  polsubN  41057  2polvalN  41064  2polssN  41065  3polN  41066  2pmaplubN  41076  paddunN  41077  poldmj1N  41078  pnonsingN  41083  ispsubcl2N  41097  psubclinN  41098  paddatclN  41099  polsubclN  41102  poml4N  41103
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