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| Mirrors > Home > MPE Home > Th. List > ax1ne0 | Structured version Visualization version GIF version | ||
| Description: 1 and 0 are distinct. Axiom 13 of 22 for real and complex numbers, derived from ZF set theory. This construction-dependent theorem should not be referenced directly; instead, use ax-1ne0 11157. (Contributed by NM, 19-Mar-1996.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| ax1ne0 | ⊢ 1 ≠ 0 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 1ne0sr 11069 | . . . 4 ⊢ ¬ 1R = 0R | |
| 2 | 1sr 11054 | . . . . . 6 ⊢ 1R ∈ R | |
| 3 | 2 | elexi 3479 | . . . . 5 ⊢ 1R ∈ V |
| 4 | 3 | eqresr 11110 | . . . 4 ⊢ (〈1R, 0R〉 = 〈0R, 0R〉 ↔ 1R = 0R) |
| 5 | 1, 4 | mtbir 326 | . . 3 ⊢ ¬ 〈1R, 0R〉 = 〈0R, 0R〉 |
| 6 | df-1 11096 | . . . 4 ⊢ 1 = 〈1R, 0R〉 | |
| 7 | df-0 11095 | . . . 4 ⊢ 0 = 〈0R, 0R〉 | |
| 8 | 6, 7 | eqeq12i 2783 | . . 3 ⊢ (1 = 0 ↔ 〈1R, 0R〉 = 〈0R, 0R〉) |
| 9 | 5, 8 | mtbir 326 | . 2 ⊢ ¬ 1 = 0 |
| 10 | 9 | neir 2963 | 1 ⊢ 1 ≠ 0 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1563 ≠ wne 2960 〈cop 4591 Rcnr 10838 0Rc0r 10839 1Rc1r 10840 0cc0 11088 1c1 11089 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2737 ax-sep 5251 ax-nul 5261 ax-pow 5327 ax-pr 5395 ax-un 7722 ax-inf2 9598 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-nf 1807 df-sb 2094 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-ral 3080 df-rex 3090 df-rmo 3370 df-reu 3371 df-rab 3418 df-v 3459 df-sbc 3748 df-csb 3856 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-pss 3927 df-nul 4289 df-if 4484 df-pw 4560 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4869 df-int 4909 df-iun 4954 df-br 5106 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5547 df-eprel 5552 df-po 5560 df-so 5561 df-fr 5605 df-we 5607 df-xp 5658 df-rel 5659 df-cnv 5660 df-co 5661 df-dm 5662 df-rn 5663 df-res 5664 df-ima 5665 df-pred 6292 df-ord 6353 df-on 6354 df-lim 6355 df-suc 6356 df-iota 6481 df-fun 6527 df-fn 6528 df-f 6529 df-f1 6530 df-fo 6531 df-f1o 6532 df-fv 6533 df-ov 7403 df-oprab 7404 df-mpo 7405 df-om 7851 df-1st 7974 df-2nd 7975 df-frecs 8266 df-wrecs 8297 df-recs 8346 df-rdg 8385 df-1o 8441 df-oadd 8445 df-omul 8446 df-er 8682 df-ec 8684 df-qs 8688 df-ni 10845 df-pli 10846 df-mi 10847 df-lti 10848 df-plpq 10881 df-mpq 10882 df-ltpq 10883 df-enq 10884 df-nq 10885 df-erq 10886 df-plq 10887 df-mq 10888 df-1nq 10889 df-rq 10890 df-ltnq 10891 df-np 10954 df-1p 10955 df-plp 10956 df-ltp 10958 df-enr 11028 df-nr 11029 df-ltr 11032 df-0r 11033 df-1r 11034 df-0 11095 df-1 11096 |
| This theorem is referenced by: (None) |
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