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Mirrors > Home > ILE Home > Th. List > neg1rr | GIF version |
Description: -1 is a real number (common case). (Contributed by David A. Wheeler, 5-Dec-2018.) |
Ref | Expression |
---|---|
neg1rr | ⊢ -1 ∈ ℝ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 1re 8018 | . 2 ⊢ 1 ∈ ℝ | |
2 | 1 | renegcli 8281 | 1 ⊢ -1 ∈ ℝ |
Colors of variables: wff set class |
Syntax hints: ∈ wcel 2164 ℝcr 7871 1c1 7873 -cneg 8191 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 615 ax-in2 616 ax-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-14 2167 ax-ext 2175 ax-sep 4147 ax-pow 4203 ax-pr 4238 ax-setind 4569 ax-resscn 7964 ax-1cn 7965 ax-1re 7966 ax-icn 7967 ax-addcl 7968 ax-addrcl 7969 ax-mulcl 7970 ax-addcom 7972 ax-addass 7974 ax-distr 7976 ax-i2m1 7977 ax-0id 7980 ax-rnegex 7981 ax-cnre 7983 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-fal 1370 df-nf 1472 df-sb 1774 df-eu 2045 df-mo 2046 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ne 2365 df-ral 2477 df-rex 2478 df-reu 2479 df-rab 2481 df-v 2762 df-sbc 2986 df-dif 3155 df-un 3157 df-in 3159 df-ss 3166 df-pw 3603 df-sn 3624 df-pr 3625 df-op 3627 df-uni 3836 df-br 4030 df-opab 4091 df-id 4324 df-xp 4665 df-rel 4666 df-cnv 4667 df-co 4668 df-dm 4669 df-iota 5215 df-fun 5256 df-fv 5262 df-riota 5873 df-ov 5921 df-oprab 5922 df-mpo 5923 df-sub 8192 df-neg 8193 |
This theorem is referenced by: xnn0nnen 10508 m1expeven 10657 bernneq 10731 crre 11001 remim 11004 sinbnd2 11897 cosbnd2 11898 cos0pilt1 14987 ioocosf1o 14989 rprelogbdiv 15089 zabsle1 15115 gausslemma2dlem6 15183 lgseisen 15190 apdiff 15538 |
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