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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 14078. (Contributed by David A. Wheeler, 8-Dec-2018.) |
| Ref | Expression |
|---|---|
| 0exp0e1 | ⊢ (0↑0) = 1 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0cn 11171 | . 2 ⊢ 0 ∈ ℂ | |
| 2 | exp0 14078 | . 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 1560 ∈ wcel 2142 (class class class)co 7396 ℂcc 11071 0cc0 11073 1c1 11074 ↑cexp 14074 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1815 ax-4 1829 ax-5 1930 ax-6 1987 ax-7 2028 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-sep 5246 ax-nul 5256 ax-pr 5390 ax-1cn 11131 ax-icn 11132 ax-addcl 11133 ax-addrcl 11134 ax-mulcl 11135 ax-i2m1 11141 ax-rnegex 11144 ax-cnre 11146 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1099 df-3an 1100 df-tru 1563 df-fal 1573 df-ex 1800 df-nf 1804 df-sb 2091 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-ral 3077 df-rex 3087 df-rab 3415 df-v 3456 df-sbc 3745 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4481 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-mpt 5182 df-id 5542 df-xp 5653 df-rel 5654 df-cnv 5655 df-co 5656 df-dm 5657 df-rn 5658 df-res 5659 df-ima 5660 df-pred 6288 df-iota 6477 df-fun 6523 df-fv 6529 df-ov 7399 df-oprab 7400 df-mpo 7401 df-frecs 8262 df-wrecs 8293 df-recs 8342 df-rdg 8381 df-neg 11417 df-z 12569 df-seq 14015 df-exp 14075 |
| This theorem is referenced by: faclbnd 14303 faclbnd3 14305 faclbnd4lem3 14308 facubnd 14313 ef0lem 16108 nn0expgcd 16598 coefv0 26308 tayl0 26425 cxpexp 26733 musum 27255 logexprlim 27289 etransclem14 46822 exple2lt6 48986 |
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