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Mirrors > Home > MPE Home > Th. List > Mathboxes > renegeu | Structured version Visualization version GIF version |
Description: Existential uniqueness of real negatives. (Contributed by Steven Nguyen, 7-Jan-2023.) |
Ref | Expression |
---|---|
renegeu | ⊢ (𝐴 ∈ ℝ → ∃!𝑥 ∈ ℝ (𝐴 + 𝑥) = 0) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | id 22 | . 2 ⊢ (𝐴 ∈ ℝ → 𝐴 ∈ ℝ) | |
2 | ax-rnegex 10848 | . 2 ⊢ (𝐴 ∈ ℝ → ∃𝑥 ∈ ℝ (𝐴 + 𝑥) = 0) | |
3 | 1, 2 | renegeulem 40245 | 1 ⊢ (𝐴 ∈ ℝ → ∃!𝑥 ∈ ℝ (𝐴 + 𝑥) = 0) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1543 ∈ wcel 2112 ∃!wreu 3066 (class class class)co 7252 ℝcr 10776 0cc0 10777 + caddc 10780 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2016 ax-8 2114 ax-9 2122 ax-10 2143 ax-11 2160 ax-12 2177 ax-ext 2710 ax-sep 5216 ax-nul 5223 ax-pow 5282 ax-pr 5346 ax-un 7563 ax-resscn 10834 ax-addrcl 10838 ax-rnegex 10848 ax-pre-lttri 10851 ax-pre-lttrn 10852 ax-pre-ltadd 10853 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2073 df-mo 2541 df-eu 2570 df-clab 2717 df-cleq 2731 df-clel 2818 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-reu 3071 df-rmo 3072 df-rab 3073 df-v 3425 df-sbc 3713 df-csb 3830 df-dif 3887 df-un 3889 df-in 3891 df-ss 3901 df-nul 4255 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4837 df-br 5071 df-opab 5133 df-mpt 5153 df-id 5479 df-po 5493 df-so 5494 df-xp 5585 df-rel 5586 df-cnv 5587 df-co 5588 df-dm 5589 df-rn 5590 df-res 5591 df-ima 5592 df-iota 6373 df-fun 6417 df-fn 6418 df-f 6419 df-f1 6420 df-fo 6421 df-f1o 6422 df-fv 6423 df-ov 7255 df-er 8433 df-en 8669 df-dom 8670 df-sdom 8671 df-pnf 10917 df-mnf 10918 df-ltxr 10920 |
This theorem is referenced by: rernegcl 40247 renegadd 40248 |
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