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| Mirrors > Home > ILE Home > Th. List > mulap0d | GIF version | ||
| Description: The product of two numbers apart from zero is apart from zero. (Contributed by Jim Kingdon, 23-Feb-2020.) |
| Ref | Expression |
|---|---|
| mulap0d.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
| mulap0d.2 | ⊢ (𝜑 → 𝐵 ∈ ℂ) |
| mulap0d.3 | ⊢ (𝜑 → 𝐴 # 0) |
| mulap0d.4 | ⊢ (𝜑 → 𝐵 # 0) |
| Ref | Expression |
|---|---|
| mulap0d | ⊢ (𝜑 → (𝐴 · 𝐵) # 0) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mulap0d.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
| 2 | mulap0d.3 | . 2 ⊢ (𝜑 → 𝐴 # 0) | |
| 3 | mulap0d.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ ℂ) | |
| 4 | mulap0d.4 | . 2 ⊢ (𝜑 → 𝐵 # 0) | |
| 5 | mulap0 8924 | . 2 ⊢ (((𝐴 ∈ ℂ ∧ 𝐴 # 0) ∧ (𝐵 ∈ ℂ ∧ 𝐵 # 0)) → (𝐴 · 𝐵) # 0) | |
| 6 | 1, 2, 3, 4, 5 | syl22anc 1275 | 1 ⊢ (𝜑 → (𝐴 · 𝐵) # 0) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2203 class class class wbr 4108 (class class class)co 6049 ℂcc 8121 0cc0 8123 · cmul 8128 # cap 8851 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2205 ax-14 2206 ax-ext 2214 ax-sep 4227 ax-pow 4286 ax-pr 4321 ax-un 4553 ax-setind 4658 ax-cnex 8214 ax-resscn 8215 ax-1cn 8216 ax-1re 8217 ax-icn 8218 ax-addcl 8219 ax-addrcl 8220 ax-mulcl 8221 ax-mulrcl 8222 ax-addcom 8223 ax-mulcom 8224 ax-addass 8225 ax-mulass 8226 ax-distr 8227 ax-i2m1 8228 ax-0lt1 8229 ax-1rid 8230 ax-0id 8231 ax-rnegex 8232 ax-precex 8233 ax-cnre 8234 ax-pre-ltirr 8235 ax-pre-ltwlin 8236 ax-pre-lttrn 8237 ax-pre-apti 8238 ax-pre-ltadd 8239 ax-pre-mulgt0 8240 ax-pre-mulext 8241 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ne 2413 df-nel 2508 df-ral 2525 df-rex 2526 df-reu 2527 df-rab 2529 df-v 2814 df-sbc 3042 df-dif 3212 df-un 3214 df-in 3216 df-ss 3223 df-pw 3670 df-sn 3694 df-pr 3695 df-op 3697 df-uni 3914 df-br 4109 df-opab 4171 df-id 4413 df-po 4416 df-iso 4417 df-xp 4754 df-rel 4755 df-cnv 4756 df-co 4757 df-dm 4758 df-iota 5311 df-fun 5353 df-fv 5359 df-riota 6002 df-ov 6052 df-oprab 6053 df-mpo 6054 df-pnf 8306 df-mnf 8307 df-xr 8308 df-ltxr 8309 df-le 8310 df-sub 8442 df-neg 8443 df-reap 8845 df-ap 8852 |
| This theorem is referenced by: divdivdivap 8983 modqmulnn 10700 exp3vallem 10898 mulexpzap 10937 absrpclap 11739 reccn2ap 11991 trireciplem 12179 prodfap0 12224 fprodap0 12300 fprodap0f 12315 efaddlem 12353 tanval3ap 12393 tanaddaplem 12417 tanaddap 12418 lcmcllem 12757 lcmgcdlem 12767 pcpremul 12984 pcmul 12992 pcqmul 12994 pcaddlem 13030 lgsdilem2 15896 lgsdi 15897 apdiff 16819 |
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