| Mathbox for Steven Nguyen |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > subresre | Structured version Visualization version GIF version | ||
| Description: Subtraction restricted to the reals. (Contributed by SN, 5-May-2024.) |
| Ref | Expression |
|---|---|
| subresre | ⊢ −ℝ = ( − ↾ (ℝ × ℝ)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | resubeqsub 43219 | . . . 4 ⊢ ((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) → (𝑥 −ℝ 𝑦) = (𝑥 − 𝑦)) | |
| 2 | 1 | 3adant1 1148 | . . 3 ⊢ ((⊤ ∧ 𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) → (𝑥 −ℝ 𝑦) = (𝑥 − 𝑦)) |
| 3 | ax-resscn 11161 | . . . 4 ⊢ ℝ ⊆ ℂ | |
| 4 | 3 | a1i 11 | . . 3 ⊢ (⊤ → ℝ ⊆ ℂ) |
| 5 | resubf 43170 | . . . 4 ⊢ −ℝ :(ℝ × ℝ)⟶ℝ | |
| 6 | 5 | a1i 11 | . . 3 ⊢ (⊤ → −ℝ :(ℝ × ℝ)⟶ℝ) |
| 7 | sn-subf 43218 | . . . 4 ⊢ − :(ℂ × ℂ)⟶ℂ | |
| 8 | 7 | a1i 11 | . . 3 ⊢ (⊤ → − :(ℂ × ℂ)⟶ℂ) |
| 9 | 2, 4, 6, 8 | oprres 7578 | . 2 ⊢ (⊤ → −ℝ = ( − ↾ (ℝ × ℝ))) |
| 10 | 9 | mptru 1577 | 1 ⊢ −ℝ = ( − ↾ (ℝ × ℝ)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ⊤wtru 1571 ∈ wcel 2143 ⊆ wss 3905 × cxp 5659 ↾ cres 5663 ⟶wf 6532 (class class class)co 7410 ℂcc 11102 ℝcr 11103 − cmin 11445 −ℝ cresub 43154 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5257 ax-nul 5269 ax-pow 5336 ax-pr 5404 ax-un 7732 ax-resscn 11161 ax-1cn 11162 ax-icn 11163 ax-addcl 11164 ax-addrcl 11165 ax-mulcl 11166 ax-mulrcl 11167 ax-addass 11169 ax-mulass 11170 ax-distr 11171 ax-i2m1 11172 ax-1ne0 11173 ax-1rid 11174 ax-rnegex 11175 ax-rrecex 11176 ax-cnre 11177 ax-pre-lttri 11178 ax-pre-lttrn 11179 ax-pre-ltadd 11180 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 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 3369 df-reu 3370 df-rab 3417 df-v 3457 df-sbc 3745 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-nul 4287 df-if 4488 df-pw 4564 df-sn 4590 df-pr 4592 df-op 4596 df-uni 4873 df-iun 4958 df-br 5110 df-opab 5174 df-mpt 5193 df-id 5556 df-po 5569 df-so 5570 df-xp 5667 df-rel 5668 df-cnv 5669 df-co 5670 df-dm 5671 df-rn 5672 df-res 5673 df-ima 5674 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-riota 7367 df-ov 7413 df-oprab 7414 df-mpo 7415 df-1st 7982 df-2nd 7983 df-er 8690 df-en 8940 df-dom 8941 df-sdom 8942 df-pnf 11249 df-mnf 11250 df-ltxr 11252 df-sub 11447 df-2 12307 df-3 12308 df-resub 43155 |
| This theorem is used by: (None) |
| Copyright terms: Public domain | W3C validator |