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| Mirrors > Home > MPE Home > Th. List > eqle | Structured version Visualization version GIF version | ||
| Description: Equality implies 'less than or equal to'. (Contributed by NM, 4-Apr-2005.) |
| Ref | Expression |
|---|---|
| eqle | ⊢ ((𝐴 ∈ ℝ ∧ 𝐴 = 𝐵) → 𝐴 ≤ 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | leid 11272 | . 2 ⊢ (𝐴 ∈ ℝ → 𝐴 ≤ 𝐴) | |
| 2 | breq2 5101 | . . 3 ⊢ (𝐴 = 𝐵 → (𝐴 ≤ 𝐴 ↔ 𝐴 ≤ 𝐵)) | |
| 3 | 2 | biimpac 482 | . 2 ⊢ ((𝐴 ≤ 𝐴 ∧ 𝐴 = 𝐵) → 𝐴 ≤ 𝐵) |
| 4 | 1, 3 | sylan 589 | 1 ⊢ ((𝐴 ∈ ℝ ∧ 𝐴 = 𝐵) → 𝐴 ≤ 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 399 = wceq 1559 ∈ wcel 2141 class class class wbr 5097 ℝcr 11065 ≤ cle 11210 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5243 ax-nul 5253 ax-pow 5319 ax-pr 5387 ax-un 7712 ax-resscn 11123 ax-pre-lttri 11140 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3061 df-ral 3076 df-rex 3086 df-rab 3414 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-br 5098 df-opab 5160 df-mpt 5179 df-id 5538 df-xp 5649 df-rel 5650 df-cnv 5651 df-co 5652 df-dm 5653 df-rn 5654 df-res 5655 df-ima 5656 df-iota 6471 df-fun 6517 df-fn 6518 df-f 6519 df-f1 6520 df-fo 6521 df-f1o 6522 df-fv 6523 df-er 8671 df-en 8921 df-dom 8922 df-sdom 8923 df-pnf 11211 df-mnf 11212 df-xr 11213 df-ltxr 11214 df-le 11215 |
| This theorem is referenced by: eqled 11279 pfxsuffeqwrdeq 14704 sqrtneglem 15283 leabs 15316 dvlip 26042 nmlno0lem 30952 nmblolbii 30958 nmlnop0iALT 32154 nmbdoplbi 32183 nmcoplbi 32187 nmbdfnlbi 32208 nmcfnlbi 32211 pjnmopi 32307 areacirc 38172 dvconstbi 44870 binomcxplemnn0 44885 |
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