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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 14027. (Contributed by David A. Wheeler, 8-Dec-2018.) |
| Ref | Expression |
|---|---|
| 0exp0e1 | ⊢ (0↑0) = 1 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0cn 11136 | . 2 ⊢ 0 ∈ ℂ | |
| 2 | exp0 14027 | . 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 1542 ∈ wcel 2114 (class class class)co 7367 ℂcc 11036 0cc0 11038 1c1 11039 ↑cexp 14023 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2708 ax-sep 5231 ax-nul 5241 ax-pr 5375 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-i2m1 11106 ax-rnegex 11109 ax-cnre 11111 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-ral 3052 df-rex 3062 df-rab 3390 df-v 3431 df-sbc 3729 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-nul 4274 df-if 4467 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-br 5086 df-opab 5148 df-mpt 5167 df-id 5526 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6265 df-iota 6454 df-fun 6500 df-fv 6506 df-ov 7370 df-oprab 7371 df-mpo 7372 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-neg 11380 df-z 12525 df-seq 13964 df-exp 14024 |
| This theorem is referenced by: faclbnd 14252 faclbnd3 14254 faclbnd4lem3 14257 facubnd 14262 ef0lem 16043 nn0expgcd 16533 coefv0 26213 tayl0 26327 cxpexp 26632 musum 27154 logexprlim 27188 etransclem14 46676 exple2lt6 48840 |
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