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Mirrors > Home > MPE Home > Th. List > Mathboxes > cotval | Structured version Visualization version Unicode version |
Description: Value of the cotangent function. (Contributed by David A. Wheeler, 14-Mar-2014.) |
Ref | Expression |
---|---|
cotval |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fveq2 6191 | . . . 4 | |
2 | 1 | neeq1d 2853 | . . 3 |
3 | 2 | elrab 3363 | . 2 |
4 | fveq2 6191 | . . . 4 | |
5 | fveq2 6191 | . . . 4 | |
6 | 4, 5 | oveq12d 6668 | . . 3 |
7 | df-cot 42487 | . . 3 | |
8 | ovex 6678 | . . 3 | |
9 | 6, 7, 8 | fvmpt 6282 | . 2 |
10 | 3, 9 | sylbir 225 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wa 384 wceq 1483 wcel 1990 wne 2794 crab 2916 cfv 5888 (class class class)co 6650 cc 9934 cc0 9936 cdiv 10684 csin 14794 ccos 14795 ccot 42484 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pr 4906 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-ral 2917 df-rex 2918 df-rab 2921 df-v 3202 df-sbc 3436 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-br 4654 df-opab 4713 df-mpt 4730 df-id 5024 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-iota 5851 df-fun 5890 df-fv 5896 df-ov 6653 df-cot 42487 |
This theorem is referenced by: cotcl 42493 recotcl 42496 reccot 42499 rectan 42500 cotsqcscsq 42503 |
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