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| Mirrors > Home > MPE Home > Th. List > 0exp0e1 | Structured version Visualization version GIF version | ||
| Description: The zeroth power of zero equals one. See comment of exp0 14100. (Contributed by David A. Wheeler, 8-Dec-2018.) |
| Ref | Expression |
|---|---|
| 0exp0e1 | ⊢ (0↑0) = 1 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0cn 11197 | . 2 ⊢ 0 ∈ ℂ | |
| 2 | exp0 14100 | . 2 ⊢ (0 ∈ ℂ → (0↑0) = 1) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (0↑0) = 1 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1567 ∈ wcel 2149 (class class class)co 7411 ℂcc 11097 0cc0 11099 1c1 11100 ↑cexp 14096 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-sep 5261 ax-nul 5271 ax-pr 5405 ax-1cn 11157 ax-icn 11158 ax-addcl 11159 ax-addrcl 11160 ax-mulcl 11161 ax-i2m1 11167 ax-rnegex 11170 ax-cnre 11172 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-ral 3086 df-rex 3096 df-rab 3424 df-v 3465 df-sbc 3754 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4295 df-if 4493 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-br 5114 df-opab 5178 df-mpt 5197 df-id 5557 df-xp 5668 df-rel 5669 df-cnv 5670 df-co 5671 df-dm 5672 df-rn 5673 df-res 5674 df-ima 5675 df-pred 6303 df-iota 6493 df-fun 6539 df-fv 6545 df-ov 7414 df-oprab 7415 df-mpo 7416 df-frecs 8277 df-wrecs 8308 df-recs 8357 df-rdg 8396 df-neg 11443 df-z 12591 df-seq 14037 df-exp 14097 |
| This theorem is referenced by: faclbnd 14325 faclbnd3 14327 faclbnd4lem3 14330 facubnd 14335 ef0lem 16131 nn0expgcd 16621 coefv0 26373 tayl0 26490 cxpexp 26798 musum 27320 logexprlim 27354 etransclem14 46853 exple2lt6 49028 |
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