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Theorem paddssw2 39349
Description: Subset law for projective subspace sum valid for all subsets of atoms. (Contributed by NM, 14-Mar-2012.)
Hypotheses
Ref Expression
paddssw.a 𝐴 = (Atomsβ€˜πΎ)
paddssw.p + = (+π‘ƒβ€˜πΎ)
Assertion
Ref Expression
paddssw2 ((𝐾 ∈ 𝐡 ∧ (𝑋 βŠ† 𝐴 ∧ π‘Œ βŠ† 𝐴 ∧ 𝑍 βŠ† 𝐴)) β†’ ((𝑋 + π‘Œ) βŠ† 𝑍 β†’ (𝑋 βŠ† 𝑍 ∧ π‘Œ βŠ† 𝑍)))
Proof of Theorem paddssw2
StepHypRef Expression
1 paddssw.a . . . . . 6 𝐴 = (Atomsβ€˜πΎ)
2 paddssw.p . . . . . 6 + = (+π‘ƒβ€˜πΎ)
31, 2sspadd1 39320 . . . . 5 ((𝐾 ∈ 𝐡 ∧ 𝑋 βŠ† 𝐴 ∧ π‘Œ βŠ† 𝐴) β†’ 𝑋 βŠ† (𝑋 + π‘Œ))
433adant3r3 1181 . . . 4 ((𝐾 ∈ 𝐡 ∧ (𝑋 βŠ† 𝐴 ∧ π‘Œ βŠ† 𝐴 ∧ 𝑍 βŠ† 𝐴)) β†’ 𝑋 βŠ† (𝑋 + π‘Œ))
5 sstr 3990 . . . 4 ((𝑋 βŠ† (𝑋 + π‘Œ) ∧ (𝑋 + π‘Œ) βŠ† 𝑍) β†’ 𝑋 βŠ† 𝑍)
64, 5sylan 578 . . 3 (((𝐾 ∈ 𝐡 ∧ (𝑋 βŠ† 𝐴 ∧ π‘Œ βŠ† 𝐴 ∧ 𝑍 βŠ† 𝐴)) ∧ (𝑋 + π‘Œ) βŠ† 𝑍) β†’ 𝑋 βŠ† 𝑍)
76ex 411 . 2 ((𝐾 ∈ 𝐡 ∧ (𝑋 βŠ† 𝐴 ∧ π‘Œ βŠ† 𝐴 ∧ 𝑍 βŠ† 𝐴)) β†’ ((𝑋 + π‘Œ) βŠ† 𝑍 β†’ 𝑋 βŠ† 𝑍))
8 simpl 481 . . . . 5 ((𝐾 ∈ 𝐡 ∧ (𝑋 βŠ† 𝐴 ∧ π‘Œ βŠ† 𝐴 ∧ 𝑍 βŠ† 𝐴)) β†’ 𝐾 ∈ 𝐡)
9 simpr2 1192 . . . . 5 ((𝐾 ∈ 𝐡 ∧ (𝑋 βŠ† 𝐴 ∧ π‘Œ βŠ† 𝐴 ∧ 𝑍 βŠ† 𝐴)) β†’ π‘Œ βŠ† 𝐴)
10 simpr1 1191 . . . . 5 ((𝐾 ∈ 𝐡 ∧ (𝑋 βŠ† 𝐴 ∧ π‘Œ βŠ† 𝐴 ∧ 𝑍 βŠ† 𝐴)) β†’ 𝑋 βŠ† 𝐴)
111, 2sspadd2 39321 . . . . 5 ((𝐾 ∈ 𝐡 ∧ π‘Œ βŠ† 𝐴 ∧ 𝑋 βŠ† 𝐴) β†’ π‘Œ βŠ† (𝑋 + π‘Œ))
128, 9, 10, 11syl3anc 1368 . . . 4 ((𝐾 ∈ 𝐡 ∧ (𝑋 βŠ† 𝐴 ∧ π‘Œ βŠ† 𝐴 ∧ 𝑍 βŠ† 𝐴)) β†’ π‘Œ βŠ† (𝑋 + π‘Œ))
13 sstr 3990 . . . 4 ((π‘Œ βŠ† (𝑋 + π‘Œ) ∧ (𝑋 + π‘Œ) βŠ† 𝑍) β†’ π‘Œ βŠ† 𝑍)
1412, 13sylan 578 . . 3 (((𝐾 ∈ 𝐡 ∧ (𝑋 βŠ† 𝐴 ∧ π‘Œ βŠ† 𝐴 ∧ 𝑍 βŠ† 𝐴)) ∧ (𝑋 + π‘Œ) βŠ† 𝑍) β†’ π‘Œ βŠ† 𝑍)
1514ex 411 . 2 ((𝐾 ∈ 𝐡 ∧ (𝑋 βŠ† 𝐴 ∧ π‘Œ βŠ† 𝐴 ∧ 𝑍 βŠ† 𝐴)) β†’ ((𝑋 + π‘Œ) βŠ† 𝑍 β†’ π‘Œ βŠ† 𝑍))
167, 15jcad 511 1 ((𝐾 ∈ 𝐡 ∧ (𝑋 βŠ† 𝐴 ∧ π‘Œ βŠ† 𝐴 ∧ 𝑍 βŠ† 𝐴)) β†’ ((𝑋 + π‘Œ) βŠ† 𝑍 β†’ (𝑋 βŠ† 𝑍 ∧ π‘Œ βŠ† 𝑍)))
Colors of variables: wff setvar class
Syntax hints:   β†’ wi 4   ∧ wa 394   ∧ w3a 1084   = wceq 1533   ∈ wcel 2098   βŠ† wss 3949  β€˜cfv 6553  (class class class)co 7426  Atomscatm 38767  +𝑃cpadd 39300
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1789  ax-4 1803  ax-5 1905  ax-6 1963  ax-7 2003  ax-8 2100  ax-9 2108  ax-10 2129  ax-11 2146  ax-12 2166  ax-ext 2699  ax-rep 5289  ax-sep 5303  ax-nul 5310  ax-pow 5369  ax-pr 5433  ax-un 7746
This theorem depends on definitions:  df-bi 206  df-an 395  df-or 846  df-3an 1086  df-tru 1536  df-fal 1546  df-ex 1774  df-nf 1778  df-sb 2060  df-mo 2529  df-eu 2558  df-clab 2706  df-cleq 2720  df-clel 2806  df-nfc 2881  df-ne 2938  df-ral 3059  df-rex 3068  df-reu 3375  df-rab 3431  df-v 3475  df-sbc 3779  df-csb 3895  df-dif 3952  df-un 3954  df-in 3956  df-ss 3966  df-nul 4327  df-if 4533  df-pw 4608  df-sn 4633  df-pr 4635  df-op 4639  df-uni 4913  df-iun 5002  df-br 5153  df-opab 5215  df-mpt 5236  df-id 5580  df-xp 5688  df-rel 5689  df-cnv 5690  df-co 5691  df-dm 5692  df-rn 5693  df-res 5694  df-ima 5695  df-iota 6505  df-fun 6555  df-fn 6556  df-f 6557  df-f1 6558  df-fo 6559  df-f1o 6560  df-fv 6561  df-ov 7429  df-oprab 7430  df-mpo 7431  df-1st 7999  df-2nd 8000  df-padd 39301
This theorem is referenced by:  paddss  39350
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