| Metamath Proof Explorer |
< Previous
Next >
Related theorems GIF version |
| Description: Lemma for supremum theorem. |
| Ref | Expression |
|---|---|
| supsrlem.1 | ⊢ C ∈ R |
| supsrlem3.2 | ⊢ A ∈ V |
| supsrlem3.3 | ⊢ B ∈ V |
| Ref | Expression |
|---|---|
| supsrlem3 | ⊢ ((C +R (A +R -1R)) <R (C +R (B +R -1R)) ↔ A <R B) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | m1r 3985 | . . 3 ⊢ -1R ∈ R | |
| 2 | supsrlem3.2 | . . . 4 ⊢ A ∈ V | |
| 3 | supsrlem3.3 | . . . 4 ⊢ B ∈ V | |
| 4 | visset 1350 | . . . . 5 ⊢ x ∈ V | |
| 5 | visset 1350 | . . . . 5 ⊢ y ∈ V | |
| 6 | 4, 5 | ltasr 4003 | . . . 4 ⊢ (z ∈ R → (x <R y ↔ (z +R x) <R (z +R y))) |
| 7 | 1 | elisseti 1355 | . . . 4 ⊢ -1R ∈ V |
| 8 | 4, 5 | addcomsr 3990 | . . . 4 ⊢ (x +R y) = (y +R x) |
| 9 | 2, 3, 6, 7, 8 | caoprord2 3071 | . . 3 ⊢ (-1R ∈ R → (A <R B ↔ (A +R -1R) <R (B +R -1R))) |
| 10 | 1, 9 | ax-mp 6 | . 2 ⊢ (A <R B ↔ (A +R -1R) <R (B +R -1R)) |
| 11 | supsrlem.1 | . . 3 ⊢ C ∈ R | |
| 12 | oprex 3018 | . . . 4 ⊢ (A +R -1R) ∈ V | |
| 13 | oprex 3018 | . . . 4 ⊢ (B +R -1R) ∈ V | |
| 14 | 12, 13 | ltasr 4003 | . . 3 ⊢ (C ∈ R → ((A +R -1R) <R (B +R -1R) ↔ (C +R (A +R -1R)) <R (C +R (B +R -1R)))) |
| 15 | 11, 14 | ax-mp 6 | . 2 ⊢ ((A +R -1R) <R (B +R -1R) ↔ (C +R (A +R -1R)) <R (C +R (B +R -1R))) |
| 16 | 10, 15 | bitr2 152 | 1 ⊢ ((C +R (A +R -1R)) <R (C +R (B +R -1R)) ↔ A <R B) |
| Colors of variables: wff set class |
| Syntax hints: ↔ wb 127 ∈ wcel 1092 Vcvv 1348 class class class wbr 2054 (class class class)co 3001 Rcnr 3787 -1Rcm1r 3790 +R cplr 3791 <R cltr 3793 |
| This theorem is referenced by: supsrlem6 4024 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 ax-4 673 ax-5 674 ax-6 675 ax-7 676 ax-gen 677 ax-8 798 ax-9 799 ax-10 800 ax-11 801 ax-12 802 ax-13 804 ax-14 805 ax-16 922 ax-17 925 ax-ext 1074 ax-rep 1075 ax-un 1076 ax-pow 1077 ax-reg 1078 ax-inf 1079 |
| This theorem depends on definitions: df-bi 128 df-or 197 df-an 198 df-3or 582 df-3an 583 df-ex 679 df-sb 853 df-eu 1009 df-mo 1010 df-clab 1093 df-cleq 1097 df-clel 1099 df-ne 1192 df-ral 1205 df-rex 1206 df-reu 1207 df-rab 1208 df-v 1349 df-sbc 1441 df-dif 1489 df-un 1490 df-in 1491 df-ss 1492 df-pss 1494 df-nul 1708 df-if 1777 df-pw 1799 df-sn 1811 df-pr 1812 df-tp 1814 df-op 1815 df-uni 1920 df-int 1966 df-iun 1996 df-tr 2042 df-br 2063 df-opab 2098 df-eprel 2122 df-id 2125 df-po 2128 df-so 2138 df-fr 2169 df-we 2186 df-ord 2202 df-on 2203 df-lim 2204 df-suc 2205 df-om 2373 df-xp 2424 df-rel 2425 df-cnv 2426 df-co 2427 df-dm 2428 df-rn 2429 df-res 2430 df-ima 2431 df-fun 2432 df-fn 2433 df-f 2434 df-f1 2435 df-fv 2438 df-rdg 2970 df-opr 3003 df-oprab 3004 df-1o 3104 df-oadd 3106 df-omul 3107 df-er 3200 df-ec 3202 df-qs 3205 df-ni 3794 df-pli 3795 df-mi 3796 df-lti 3797 df-plpq 3829 df-mpq 3830 df-enq 3831 df-nq 3832 df-plq 3833 df-mq 3834 df-rq 3835 df-ltq 3836 df-1q 3837 df-np 3880 df-1p 3881 df-plp 3882 df-ltp 3884 df-plpr 3958 df-enr 3960 df-nr 3961 df-plr 3962 df-ltr 3964 df-m1r 3967 |