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| Mirrors > Home > MPE Home > Th. List > Mathboxes > sn-00id | Structured version Visualization version GIF version | ||
| Description: 00id 11495 proven without ax-mulcom 11274 but using ax-1ne0 11279. (Though note that the current version of 00id 11495 can be changed to avoid ax-icn 11269, ax-addcl 11270, ax-mulcl 11272, ax-i2m1 11278, ax-cnre 11283. Most of this is by using 0cnALT3 43444 instead of 0cn 11308). (Contributed by SN, 25-Dec-2023.) (Proof modification is discouraged.) |
| Ref | Expression |
|---|---|
| sn-00id | ⊢ (0 + 0) = 0 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0re 11320 | . . . . 5 ⊢ 0 ∈ ℝ | |
| 2 | resubadd 43570 | . . . . 5 ⊢ ((0 ∈ ℝ ∧ 0 ∈ ℝ ∧ 0 ∈ ℝ) → ((0 −ℝ 0) = 0 ↔ (0 + 0) = 0)) | |
| 3 | 1, 1, 1, 2 | mp3an 1490 | . . . 4 ⊢ ((0 −ℝ 0) = 0 ↔ (0 + 0) = 0) |
| 4 | 3 | necon3abii 3004 | . . 3 ⊢ ((0 −ℝ 0) ≠ 0 ↔ ¬ (0 + 0) = 0) |
| 5 | sn-00idlem2 43590 | . . . 4 ⊢ ((0 −ℝ 0) ≠ 0 → (0 −ℝ 0) = 1) | |
| 6 | sn-00idlem3 43591 | . . . 4 ⊢ ((0 −ℝ 0) = 1 → (0 + 0) = 0) | |
| 7 | 5, 6 | syl 18 | . . 3 ⊢ ((0 −ℝ 0) ≠ 0 → (0 + 0) = 0) |
| 8 | 4, 7 | sylbir 238 | . 2 ⊢ (¬ (0 + 0) = 0 → (0 + 0) = 0) |
| 9 | 8 | pm2.18i 130 | 1 ⊢ (0 + 0) = 0 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 ↔ wb 209 = wceq 1569 ∈ wcel 2146 ≠ wne 2958 (class class class)co 7427 ℝcr 11209 0cc0 11210 1c1 11211 + caddc 11213 −ℝ cresub 43556 |
| 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 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2196 ax-12 2215 ax-ext 2735 ax-sep 5251 ax-nul 5262 ax-pow 5330 ax-pr 5394 ax-un 7758 ax-resscn 11267 ax-1cn 11268 ax-icn 11269 ax-addcl 11270 ax-addrcl 11271 ax-mulcl 11272 ax-mulrcl 11273 ax-addass 11275 ax-mulass 11276 ax-distr 11277 ax-i2m1 11278 ax-1ne0 11279 ax-1rid 11280 ax-rnegex 11281 ax-rrecex 11282 ax-cnre 11283 ax-pre-lttri 11284 ax-pre-lttrn 11285 ax-pre-ltadd 11286 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2101 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3065 df-ral 3080 df-rex 3090 df-rmo 3368 df-reu 3369 df-rab 3416 df-v 3455 df-sbc 3742 df-csb 3851 df-ss 3900 df-dif 4049 df-in 4093 df-un 4153 df-nul 4281 df-if 4485 df-pw 4561 df-sn 4588 df-pr 4590 df-op 4838 df-uni 4870 df-br 5106 df-opab 5170 df-mpt 5189 df-id 5549 df-po 5562 df-so 5563 df-xp 5660 df-rel 5661 df-cnv 5662 df-co 5663 df-dm 5664 df-rn 5665 df-res 5666 df-ima 5667 df-iota 6500 df-fun 6548 df-fn 6549 df-f 6550 df-f1 6551 df-fo 6552 df-f1o 6553 df-fv 6554 df-riota 7384 df-ov 7430 df-oprab 7431 df-mpo 7432 df-er 8728 df-en 8985 df-dom 8986 df-sdom 8987 df-pnf 11355 df-mnf 11356 df-ltxr 11358 df-resub 43557 |
| This theorem is used by: re0m0e0 43593 sn-addrid 43612 sn-mul01 43617 sn-mul02 43656 |
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