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| Mirrors > Home > ILE Home > Th. List > negeqd | Unicode version | ||
| Description: Equality deduction for negatives. (Contributed by NM, 14-May-1999.) |
| Ref | Expression |
|---|---|
| negeqd.1 |
|
| Ref | Expression |
|---|---|
| negeqd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | negeqd.1 |
. 2
| |
| 2 | negeq 8519 |
. 2
| |
| 3 | 1, 2 | syl 14 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-rex 2534 df-v 2823 df-un 3224 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4131 df-iota 5337 df-fv 5385 df-ov 6088 df-neg 8500 |
| This theorem is used by: negdi 8583 mulneg2 8723 mulm1 8727 eqord2 8812 mulreim 8932 apneg 8939 divnegap 9036 div2negap 9065 recgt0 9180 infrenegsupex 9994 supminfex 9997 mul2lt0rlt0 10160 ceilqval 10743 ceilid 10752 modqcyc2 10797 monoord2 10923 reneg 11633 imneg 11641 cjcj 11648 cjneg 11655 minmax 11996 minabs 12002 telfsumo2 12234 sinneg 12493 tannegap 12495 sincossq 12515 odd2np1 12640 oexpneg 12644 modgcd 12768 pcneg 13104 mulgval 13925 mulgneg 13943 ivthdec 15745 limcimolemlt 15765 dvrecap 15814 sinperlem 15909 efimpi 15920 ptolemy 15925 birthdaylem3 16089 lgsneg1 16144 lgseisenlem1 16189 lgseisenlem4 16192 m1lgs 16204 ex-ceil 16740 |
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