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Theorem suprelem 5272
Description: Mapping of non-empty subset from signed reals to reals.
Hypothesis
Ref Expression
supre.1 B = {ww, 0R A}
Assertion
Ref Expression
suprelem ((A ¬ A = ) → (B R ¬ B = ))
Distinct variable groups:   w,A   w,B

Proof of Theorem suprelem
StepHypRef Expression
1 ssel 2072 . . . . . 6 (A → (w, 0R Aw, 0R ))
2 supre.1 . . . . . . 7 B = {ww, 0R A}
32abeq2i 1577 . . . . . 6 (w Bw, 0R A)
41, 3syl5ib 206 . . . . 5 (A → (w Bw, 0R ))
5 opelreal 5262 . . . . 5 (w, 0R w R)
64, 5syl6ib 212 . . . 4 (A → (w Bw R))
76ssrdv 2079 . . 3 (A B R)
87adantr 391 . 2 ((A ¬ A = ) → B R)
9 ssel 2072 . . . . . . . 8 (A → (x Ax ))
109com12 11 . . . . . . 7 (x A → (A x ))
11 eleq1 1541 . . . . . . . . . . . . 13 (w, 0R = x → (w, 0R Ax A))
1211, 3syl5bb 535 . . . . . . . . . . . 12 (w, 0R = x → (w Bx A))
1312biimprcd 156 . . . . . . . . . . 11 (x A → (w, 0R = xw B))
14 n0i 2294 . . . . . . . . . . 11 (w B → ¬ B = )
1513, 14syl6 22 . . . . . . . . . 10 (x A → (w, 0R = x → ¬ B = ))
1615adantld 392 . . . . . . . . 9 (x A → ((w R w, 0R = x) → ¬ B = ))
171619.23adv 1220 . . . . . . . 8 (x A → (w(w R w, 0R = x) → ¬ B = ))
18 elreal 5263 . . . . . . . 8 (x w(w R w, 0R = x))
1917, 18syl5ib 206 . . . . . . 7 (x A → (x → ¬ B = ))
2010, 19syld 27 . . . . . 6 (x A → (A → ¬ B = ))
212019.23aiv 1301 . . . . 5 (x x A → (A → ¬ B = ))
2221com12 11 . . . 4 (A → (x x A → ¬ B = ))
23 n0 2299 . . . 4 A = x x A)
2422, 23syl5ib 206 . . 3 (A → (¬ A = → ¬ B = ))
2524imp 350 . 2 ((A ¬ A = ) → ¬ B = )
268, 25jca 288 1 ((A ¬ A = ) → (B R ¬ B = ))
Colors of variables: wff set class
Syntax hints:  ¬ wn 2   → wi 3   wa 223   = wceq 960   wcel 962  wex 984  {cab 1470   wss 2056  c0 2289  cop 2421  Rcnr 5006  0Rc0r 5007  cr 5246
This theorem is referenced by:  supre 5273
This theorem was proved from axioms:  ax-1 4  ax-2 5  ax-3 6  ax-mp 7  ax-7 966  ax-gen 967  ax-8 968  ax-9 969  ax-10 970  ax-11 971  ax-12 972  ax-13 973  ax-14 974  ax-17 975  ax-4 977  ax-5o 979  ax-6o 982  ax-9o 1129  ax-10o 1146  ax-16 1216  ax-11o 1224  ax-ext 1466  ax-rep 2706  ax-sep 2716  ax-nul 2723  ax-pow 2756  ax-pr 2793  ax-un 2880  ax-inf2 4637
This theorem depends on definitions:  df-bi 147  df-or 224  df-an 225  df-3or 780  df-3an 781  df-ex 985  df-sb 1178  df-eu 1388  df-mo 1389  df-clab 1471  df-cleq 1476  df-clel 1479  df-ne 1594  df-ral 1656  df-rex 1657  df-reu 1658  df-rab 1659  df-v 1819  df-sbc 1949  df-csb 2010  df-dif 2058  df-un 2059  df-in 2060  df-ss 2062  df-pss 2064  df-nul 2290  df-if 2372  df-pw 2412  df-sn 2422  df-pr 2423  df-tp 2425  df-op 2426  df-uni 2516  df-int 2546  df-iun 2580  df-br 2633  df-opab 2680  df-tr 2694  df-eprel 2846  df-id 2849  df-po 2854  df-so 2864  df-fr 2931  df-we 2948  df-ord 2965  df-on 2966  df-lim 2967  df-suc 2968  df-om 3146  df-xp 3198  df-rel 3199  df-cnv 3200  df-co 3201  df-dm 3202  df-rn 3203  df-res 3204  df-ima 3205  df-fun 3206  df-fn 3207  df-f 3208  df-fv 3212  df-rdg 3946  df-opr 3979  df-oprab 3980  df-1st 4093  df-2nd 4094  df-1o 4147  df-oadd 4149  df-omul 4150  df-er 4275  df-ec 4277  df-qs 4280  df-ni 5013  df-pli 5014  df-mi 5015  df-lti 5016  df-plpq 5048  df-mpq 5049  df-enq 5050  df-nq 5051  df-plq 5052  df-mq 5053  df-rq 5054  df-ltq 5055  df-1q 5056  df-np 5099  df-1p 5100  df-enr 5179  df-nr 5180  df-0r 5184  df-r 5257
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