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| 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 43370 | . . . 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 11206 | . . . 4 ⊢ ℝ ⊆ ℂ | |
| 4 | 3 | a1i 11 | . . 3 ⊢ (⊤ → ℝ ⊆ ℂ) |
| 5 | resubf 43321 | . . . 4 ⊢ −ℝ :(ℝ × ℝ)⟶ℝ | |
| 6 | 5 | a1i 11 | . . 3 ⊢ (⊤ → −ℝ :(ℝ × ℝ)⟶ℝ) |
| 7 | sn-subf 43369 | . . . 4 ⊢ − :(ℂ × ℂ)⟶ℂ | |
| 8 | 7 | a1i 11 | . . 3 ⊢ (⊤ → − :(ℂ × ℂ)⟶ℂ) |
| 9 | 2, 4, 6, 8 | oprres 7584 | . 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 2145 ⊆ wss 3899 × cxp 5653 ↾ cres 5657 ⟶wf 6531 (class class class)co 7416 ℂcc 11147 ℝcr 11148 − cmin 11490 −ℝ cresub 43305 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7742 ax-resscn 11206 ax-1cn 11207 ax-icn 11208 ax-addcl 11209 ax-addrcl 11210 ax-mulcl 11211 ax-mulrcl 11212 ax-addass 11214 ax-mulass 11215 ax-distr 11216 ax-i2m1 11217 ax-1ne0 11218 ax-1rid 11219 ax-rnegex 11220 ax-rrecex 11221 ax-cnre 11222 ax-pre-lttri 11223 ax-pre-lttrn 11224 ax-pre-ltadd 11225 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-id 5550 df-po 5563 df-so 5564 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-iota 6491 df-fun 6537 df-fn 6538 df-f 6539 df-f1 6540 df-fo 6541 df-f1o 6542 df-fv 6543 df-riota 7373 df-ov 7419 df-oprab 7420 df-mpo 7421 df-1st 7992 df-2nd 7993 df-er 8703 df-en 8960 df-dom 8961 df-sdom 8962 df-pnf 11294 df-mnf 11295 df-ltxr 11297 df-sub 11492 df-2 12352 df-3 12353 df-resub 43306 |
| This theorem is used by: (None) |
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